<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><link rel="stylesheet" type="text/css" href="style.css" /><script type="text/javascript" src="highlight.js"></script></head><body><pre><span class="hs-comment">{- This file was auto-generated from tensorflow/core/example/example.proto by the proto-lens-protoc program. -}</span><span> </span><a name="line-2"></a><span class="hs-pragma">{-# LANGUAGE ScopedTypeVariables, DataKinds, TypeFamilies, UndecidableInstances, MultiParamTypeClasses, FlexibleContexts, FlexibleInstances, PatternSynonyms, MagicHash, NoImplicitPrelude #-}</span><span> </span><a name="line-6"></a><span class="hs-pragma">{-# OPTIONS_GHC -fno-warn-unused-imports#-}</span><span> </span><a name="line-7"></a><span class="hs-keyword">module</span><span> </span><span class="hs-identifier">Proto</span><span class="hs-operator">.</span><span 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hs-type">Example</span><span class="hs-operator hs-type">.</span><span class="hs-identifier hs-type">Feature</span><span class="hs-operator hs-type">.</span><span class="hs-identifier hs-type">Features</span></a><span class="hs-special">)</span><span class="hs-special">}</span><span> </span><a name="line-31"></a><span> </span><span class="hs-keyword">deriving</span><span> </span><span class="hs-special">(</span><span class="hs-identifier hs-type">Prelude</span><span class="hs-operator hs-type">.</span><span class="hs-identifier hs-type">Show</span><span class="hs-special">,</span><span> </span><span class="hs-identifier hs-type">Prelude</span><span class="hs-operator hs-type">.</span><span class="hs-identifier hs-type">Eq</span><span class="hs-special">,</span><span> </span><span class="hs-identifier hs-type">Prelude</span><span class="hs-operator hs-type">.</span><span class="hs-identifier hs-type">Ord</span><span class="hs-special">)</span><span> </span><a name="line-32"></a><span> </span><a name="line-33"></a><span class="hs-keyword">instance</span><span> </span><span class="hs-special">(</span><a href="#local-6989586621679192280"><span class="hs-identifier hs-type">a</span></a><span> </span><span class="hs-glyph">~</span><span> </span><a href="Proto.Tensorflow.Core.Example.Feature.html#Features"><span class="hs-identifier hs-type">Proto</span><span class="hs-operator hs-type">.</span><span class="hs-identifier hs-type">Tensorflow</span><span class="hs-operator hs-type">.</span><span class="hs-identifier hs-type">Core</span><span class="hs-operator hs-type">.</span><span class="hs-identifier hs-type">Example</span><span class="hs-operator hs-type">.</span><span class="hs-identifier hs-type">Feature</span><span class="hs-operator hs-type">.</span><span class="hs-identifier hs-type">Features</span></a><span class="hs-special">,</span><span> </span><a name="line-34"></a><span> </span><a href="#local-6989586621679192281"><span class="hs-identifier hs-type">b</span></a><span> </span><span class="hs-glyph">~</span><span> </span><a href="Proto.Tensorflow.Core.Example.Feature.html#Features"><span class="hs-identifier hs-type">Proto</span><span class="hs-operator hs-type">.</span><span class="hs-identifier hs-type">Tensorflow</span><span class="hs-operator hs-type">.</span><span class="hs-identifier hs-type">Core</span><span class="hs-operator hs-type">.</span><span class="hs-identifier hs-type">Example</span><span class="hs-operator hs-type">.</span><span class="hs-identifier hs-type">Feature</span><span class="hs-operator hs-type">.</span><span class="hs-identifier hs-type">Features</span></a><span class="hs-special">,</span><span> </span><a name="line-35"></a><span> </span><span class="hs-identifier hs-type">Prelude</span><span class="hs-operator hs-type">.</span><span class="hs-identifier hs-type">Functor</span><span> </span><a href="#local-6989586621679192282"><span class="hs-identifier hs-type">f</span></a><span 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name="line-37"></a><span> </span><span class="hs-keyword">where</span><span> </span><a name="line-38"></a><span> </span><a name="local-8214565720323801034"><span class="hs-identifier">lensOf</span></a><span> </span><span class="hs-identifier">_</span><span> </span><a name="line-39"></a><span> </span><span class="hs-glyph">=</span><span> </span><span class="hs-special">(</span><span class="hs-identifier hs-var">Prelude</span><span class="hs-glyph">..</span><span class="hs-special">)</span><span> </span><a name="line-40"></a><span> </span><span class="hs-special">(</span><span class="hs-identifier hs-var">Lens</span><span class="hs-operator hs-var">.</span><span class="hs-identifier hs-var">Family2</span><span class="hs-operator hs-var">.</span><span class="hs-identifier hs-var">Unchecked</span><span class="hs-operator hs-var">.</span><span class="hs-identifier hs-var">lens</span><span> </span><span class="hs-identifier">_Example'features</span><span> </span><a name="line-41"></a><span> </span><span class="hs-special">(</span><span class="hs-glyph">\</span><span> </span><a name="local-6989586621679192283"><a href="#local-6989586621679192283"><span class="hs-identifier">x__</span></a></a><span> </span><a name="local-6989586621679192284"><a href="#local-6989586621679192284"><span class="hs-identifier">y__</span></a></a><span> </span><span class="hs-glyph">-></span><span> </span><a href="#local-6989586621679192283"><span class="hs-identifier hs-var">x__</span></a><span class="hs-special">{</span><span class="hs-identifier">_Example'features</span><span> </span><span class="hs-glyph">=</span><span> </span><a href="#local-6989586621679192284"><span class="hs-identifier hs-var">y__</span></a><span class="hs-special">}</span><span class="hs-special">)</span><span class="hs-special">)</span><span> </span><a name="line-42"></a><span> </span><span class="hs-special">(</span><span class="hs-identifier hs-var">Data</span><span class="hs-operator hs-var">.</span><span class="hs-identifier hs-var">ProtoLens</span><span class="hs-operator hs-var">.</span><span class="hs-identifier hs-var">maybeLens</span><span> </span><span class="hs-identifier hs-var">Data</span><span class="hs-operator hs-var">.</span><span class="hs-identifier hs-var">Default</span><span class="hs-operator hs-var">.</span><span class="hs-identifier hs-var">Class</span><span class="hs-operator hs-var">.</span><span class="hs-identifier hs-var">def</span><span class="hs-special">)</span><span> </span><a name="line-43"></a><span> </span><a name="line-44"></a><span class="hs-keyword">instance</span><span> </span><span class="hs-special">(</span><a href="#local-6989586621679192275"><span class="hs-identifier hs-type">a</span></a><span> </span><span class="hs-glyph">~</span><span> </span><a name="line-45"></a><span> </span><span class="hs-identifier hs-type">Prelude</span><span class="hs-operator hs-type">.</span><span class="hs-identifier hs-type">Maybe</span><span> </span><a href="Proto.Tensorflow.Core.Example.Feature.html#Features"><span class="hs-identifier hs-type">Proto</span><span class="hs-operator hs-type">.</span><span class="hs-identifier hs-type">Tensorflow</span><span class="hs-operator hs-type">.</span><span class="hs-identifier hs-type">Core</span><span class="hs-operator hs-type">.</span><span class="hs-identifier hs-type">Example</span><span class="hs-operator hs-type">.</span><span class="hs-identifier hs-type">Feature</span><span class="hs-operator hs-type">.</span><span class="hs-identifier hs-type">Features</span></a><span class="hs-special">,</span><span> </span><a name="line-46"></a><span> </span><a href="#local-6989586621679192276"><span class="hs-identifier hs-type">b</span></a><span> </span><span class="hs-glyph">~</span><span> </span><span class="hs-identifier hs-type">Prelude</span><span class="hs-operator hs-type">.</span><span class="hs-identifier hs-type">Maybe</span><span> </span><a href="Proto.Tensorflow.Core.Example.Feature.html#Features"><span class="hs-identifier hs-type">Proto</span><span class="hs-operator hs-type">.</span><span class="hs-identifier hs-type">Tensorflow</span><span class="hs-operator hs-type">.</span><span class="hs-identifier hs-type">Core</span><span class="hs-operator hs-type">.</span><span class="hs-identifier hs-type">Example</span><span class="hs-operator hs-type">.</span><span class="hs-identifier hs-type">Feature</span><span class="hs-operator hs-type">.</span><span class="hs-identifier hs-type">Features</span></a><span class="hs-special">,</span><span> </span><a name="line-47"></a><span> </span><span class="hs-identifier hs-type">Prelude</span><span class="hs-operator hs-type">.</span><span class="hs-identifier hs-type">Functor</span><span> </span><a href="#local-6989586621679192277"><span class="hs-identifier hs-type">f</span></a><span class="hs-special">)</span><span> </span><span class="hs-glyph">=></span><span> </span><a name="line-48"></a><span> </span><span class="hs-identifier hs-type">Lens</span><span class="hs-operator hs-type">.</span><span class="hs-identifier hs-type">Labels</span><span class="hs-operator hs-type">.</span><span class="hs-identifier hs-type">HasLens</span><span> </span><span class="hs-string">"maybe'features"</span><span> </span><a href="#local-6989586621679192277"><span class="hs-identifier hs-type">f</span></a><span> </span><a href="Proto.Tensorflow.Core.Example.Example.html#Example"><span class="hs-identifier hs-type">Example</span></a><span> </span><a href="Proto.Tensorflow.Core.Example.Example.html#Example"><span class="hs-identifier hs-type">Example</span></a><span> </span><a href="#local-6989586621679192275"><span class="hs-identifier hs-type">a</span></a><span> </span><a href="#local-6989586621679192276"><span class="hs-identifier hs-type">b</span></a><span> </span><a name="line-49"></a><span> </span><span class="hs-keyword">where</span><span> </span><a name="line-50"></a><span> </span><a name="local-8214565720323801034"><span class="hs-identifier">lensOf</span></a><span> </span><span class="hs-identifier">_</span><span> </span><a name="line-51"></a><span> </span><span class="hs-glyph">=</span><span> </span><span class="hs-special">(</span><span class="hs-identifier hs-var">Prelude</span><span class="hs-glyph">..</span><span class="hs-special">)</span><span> </span><a name="line-52"></a><span> </span><span class="hs-special">(</span><span class="hs-identifier hs-var">Lens</span><span class="hs-operator hs-var">.</span><span class="hs-identifier hs-var">Family2</span><span class="hs-operator hs-var">.</span><span class="hs-identifier hs-var">Unchecked</span><span class="hs-operator hs-var">.</span><span class="hs-identifier hs-var">lens</span><span> </span><span class="hs-identifier">_Example'features</span><span> </span><a name="line-53"></a><span> </span><span class="hs-special">(</span><span class="hs-glyph">\</span><span> </span><a name="local-6989586621679192278"><a href="#local-6989586621679192278"><span class="hs-identifier">x__</span></a></a><span> </span><a name="local-6989586621679192279"><a href="#local-6989586621679192279"><span class="hs-identifier">y__</span></a></a><span> </span><span class="hs-glyph">-></span><span> </span><a href="#local-6989586621679192278"><span class="hs-identifier hs-var">x__</span></a><span class="hs-special">{</span><span class="hs-identifier">_Example'features</span><span> </span><span class="hs-glyph">=</span><span> </span><a href="#local-6989586621679192279"><span class="hs-identifier hs-var">y__</span></a><span class="hs-special">}</span><span class="hs-special">)</span><span class="hs-special">)</span><span> </span><a name="line-54"></a><span> </span><span class="hs-identifier hs-var">Prelude</span><span class="hs-operator hs-var">.</span><span class="hs-identifier hs-var">id</span><span> </span><a name="line-55"></a><span> </span><a name="line-56"></a><span class="hs-keyword">instance</span><span> </span><span class="hs-identifier hs-type">Data</span><span class="hs-operator hs-type">.</span><span class="hs-identifier hs-type">Default</span><span class="hs-operator hs-type">.</span><span class="hs-identifier hs-type">Class</span><span class="hs-operator hs-type">.</span><span class="hs-identifier hs-type">Default</span><span> </span><a href="Proto.Tensorflow.Core.Example.Example.html#Example"><span class="hs-identifier hs-type">Example</span></a><span> </span><span class="hs-keyword">where</span><span> </span><a name="line-57"></a><span> </span><a name="local-8214565720323799537"><span class="hs-identifier">def</span></a><span> </span><span class="hs-glyph">=</span><span> </span><a href="Proto.Tensorflow.Core.Example.Example.html#Example"><span class="hs-identifier hs-var">Example</span></a><span class="hs-special">{</span><span class="hs-identifier">_Example'features</span><span> </span><span class="hs-glyph">=</span><span> </span><span class="hs-identifier hs-var">Prelude</span><span class="hs-operator hs-var">.</span><span class="hs-identifier hs-var">Nothing</span><span class="hs-special">}</span><span> </span><a name="line-58"></a><span> </span><a name="line-59"></a><span class="hs-keyword">instance</span><span> </span><span class="hs-identifier hs-type">Data</span><span class="hs-operator hs-type">.</span><span class="hs-identifier hs-type">ProtoLens</span><span class="hs-operator hs-type">.</span><span class="hs-identifier hs-type">Message</span><span> </span><a href="Proto.Tensorflow.Core.Example.Example.html#Example"><span class="hs-identifier hs-type">Example</span></a><span> </span><span class="hs-keyword">where</span><span> </span><a name="line-60"></a><span> </span><a name="local-8214565720323799507"><span class="hs-identifier">descriptor</span></a><span> </span><a name="line-61"></a><span> </span><span class="hs-glyph">=</span><span> </span><span class="hs-keyword">let</span><span> </span><a name="local-6989586621679192274"><a href="#local-6989586621679192274"><span class="hs-identifier">features__field_descriptor</span></a></a><span> </span><a name="line-62"></a><span> </span><span class="hs-glyph">=</span><span> </span><span class="hs-identifier hs-var">Data</span><span class="hs-operator hs-var">.</span><span class="hs-identifier hs-var">ProtoLens</span><span class="hs-operator hs-var">.</span><span class="hs-identifier hs-var">FieldDescriptor</span><span> </span><span class="hs-string">"features"</span><span> </span><a name="line-63"></a><span> </span><span class="hs-special">(</span><span class="hs-identifier hs-var">Data</span><span class="hs-operator hs-var">.</span><span class="hs-identifier hs-var">ProtoLens</span><span class="hs-operator hs-var">.</span><span class="hs-identifier hs-var">MessageField</span><span> </span><span class="hs-glyph">::</span><span> </span><a name="line-64"></a><span> </span><span class="hs-identifier hs-type">Data</span><span class="hs-operator hs-type">.</span><span class="hs-identifier hs-type">ProtoLens</span><span class="hs-operator hs-type">.</span><span class="hs-identifier hs-type">FieldTypeDescriptor</span><span> </span><a name="line-65"></a><span> </span><a href="Proto.Tensorflow.Core.Example.Feature.html#Features"><span class="hs-identifier hs-type">Proto</span><span class="hs-operator hs-type">.</span><span class="hs-identifier hs-type">Tensorflow</span><span class="hs-operator hs-type">.</span><span class="hs-identifier hs-type">Core</span><span class="hs-operator hs-type">.</span><span class="hs-identifier hs-type">Example</span><span class="hs-operator hs-type">.</span><span class="hs-identifier hs-type">Feature</span><span class="hs-operator hs-type">.</span><span class="hs-identifier hs-type">Features</span></a><span class="hs-special">)</span><span> </span><a name="line-66"></a><span> </span><span class="hs-special">(</span><span class="hs-identifier hs-var">Data</span><span class="hs-operator hs-var">.</span><span class="hs-identifier hs-var">ProtoLens</span><span class="hs-operator hs-var">.</span><span class="hs-identifier hs-var">OptionalField</span><span> </span><a href="Proto.Tensorflow.Core.Example.Example.html#maybe%27features"><span class="hs-identifier hs-var">maybe'features</span></a><span class="hs-special">)</span><span> </span><a name="line-67"></a><span> </span><span class="hs-glyph">::</span><span> </span><span class="hs-identifier hs-type">Data</span><span class="hs-operator hs-type">.</span><span class="hs-identifier hs-type">ProtoLens</span><span class="hs-operator hs-type">.</span><span class="hs-identifier hs-type">FieldDescriptor</span><span> </span><a href="Proto.Tensorflow.Core.Example.Example.html#Example"><span class="hs-identifier hs-type">Example</span></a><span> </span><a name="line-68"></a><span> </span><span class="hs-keyword">in</span><span> </span><a name="line-69"></a><span> </span><span class="hs-identifier hs-var">Data</span><span class="hs-operator hs-var">.</span><span class="hs-identifier hs-var">ProtoLens</span><span class="hs-operator hs-var">.</span><span class="hs-identifier hs-var">MessageDescriptor</span><span> </span><a name="line-70"></a><span> </span><span class="hs-special">(</span><span class="hs-identifier hs-var">Data</span><span class="hs-operator hs-var">.</span><span class="hs-identifier hs-var">Text</span><span class="hs-operator hs-var">.</span><span class="hs-identifier hs-var">pack</span><span> </span><span class="hs-string">"tensorflow.Example"</span><span class="hs-special">)</span><span> </span><a name="line-71"></a><span> </span><span class="hs-special">(</span><span class="hs-identifier hs-var">Data</span><span class="hs-operator hs-var">.</span><span class="hs-identifier hs-var">Map</span><span class="hs-operator hs-var">.</span><span class="hs-identifier hs-var">fromList</span><span> </span><a name="line-72"></a><span> </span><span class="hs-special">[</span><span class="hs-special">(</span><span class="hs-identifier hs-var">Data</span><span class="hs-operator hs-var">.</span><span class="hs-identifier hs-var">ProtoLens</span><span class="hs-operator hs-var">.</span><span class="hs-identifier hs-var">Tag</span><span> </span><span class="hs-number">1</span><span class="hs-special">,</span><span> </span><a href="#local-6989586621679192274"><span class="hs-identifier hs-var">features__field_descriptor</span></a><span class="hs-special">)</span><span class="hs-special">]</span><span class="hs-special">)</span><span> </span><a name="line-73"></a><span> </span><span class="hs-special">(</span><span class="hs-identifier hs-var">Data</span><span class="hs-operator hs-var">.</span><span class="hs-identifier hs-var">Map</span><span class="hs-operator hs-var">.</span><span class="hs-identifier hs-var">fromList</span><span> </span><span class="hs-special">[</span><span class="hs-special">(</span><span class="hs-string">"features"</span><span class="hs-special">,</span><span> </span><a href="#local-6989586621679192274"><span class="hs-identifier hs-var">features__field_descriptor</span></a><span class="hs-special">)</span><span class="hs-special">]</span><span class="hs-special">)</span><span> </span><a name="line-74"></a><span> </span><a name="line-75"></a><span class="hs-keyword">data</span><span> </span><a name="SequenceExample"><a href="Proto.Tensorflow.Core.Example.Example.html#SequenceExample"><span class="hs-identifier">SequenceExample</span></a></a><span> </span><span class="hs-glyph">=</span><span> </span><a name="SequenceExample"><a href="Proto.Tensorflow.Core.Example.Example.html#SequenceExample"><span class="hs-identifier">SequenceExample</span></a></a><span class="hs-special">{</span><a name="_SequenceExample%27context"><a href="Proto.Tensorflow.Core.Example.Example.html#_SequenceExample%27context"><span class="hs-identifier">_SequenceExample'context</span></a></a><span> </span><span class="hs-glyph">::</span><span> </span><a name="line-76"></a><span> </span><span class="hs-glyph">!</span><span class="hs-special">(</span><span class="hs-identifier hs-type">Prelude</span><span class="hs-operator hs-type">.</span><span class="hs-identifier hs-type">Maybe</span><span> </span><a name="line-77"></a><span> </span><a href="Proto.Tensorflow.Core.Example.Feature.html#Features"><span class="hs-identifier hs-type">Proto</span><span class="hs-operator hs-type">.</span><span class="hs-identifier hs-type">Tensorflow</span><span class="hs-operator hs-type">.</span><span class="hs-identifier hs-type">Core</span><span class="hs-operator hs-type">.</span><span class="hs-identifier hs-type">Example</span><span class="hs-operator hs-type">.</span><span class="hs-identifier hs-type">Feature</span><span class="hs-operator hs-type">.</span><span class="hs-identifier hs-type">Features</span></a><span class="hs-special">)</span><span class="hs-special">,</span><span> </span><a name="line-78"></a><span> </span><a name="_SequenceExample%27featureLists"><a href="Proto.Tensorflow.Core.Example.Example.html#_SequenceExample%27featureLists"><span class="hs-identifier">_SequenceExample'featureLists</span></a></a><span> </span><span class="hs-glyph">::</span><span> </span><a name="line-79"></a><span> </span><span class="hs-glyph">!</span><span class="hs-special">(</span><span class="hs-identifier hs-type">Prelude</span><span class="hs-operator hs-type">.</span><span class="hs-identifier hs-type">Maybe</span><span> </span><a name="line-80"></a><span> </span><a href="Proto.Tensorflow.Core.Example.Feature.html#FeatureLists"><span class="hs-identifier hs-type">Proto</span><span class="hs-operator hs-type">.</span><span class="hs-identifier hs-type">Tensorflow</span><span class="hs-operator hs-type">.</span><span class="hs-identifier hs-type">Core</span><span class="hs-operator hs-type">.</span><span class="hs-identifier hs-type">Example</span><span class="hs-operator hs-type">.</span><span class="hs-identifier hs-type">Feature</span><span class="hs-operator hs-type">.</span><span class="hs-identifier hs-type">FeatureLists</span></a><span class="hs-special">)</span><span class="hs-special">}</span><span> </span><a name="line-81"></a><span> </span><span class="hs-keyword">deriving</span><span> </span><span class="hs-special">(</span><span class="hs-identifier hs-type">Prelude</span><span class="hs-operator hs-type">.</span><span class="hs-identifier hs-type">Show</span><span class="hs-special">,</span><span> </span><span class="hs-identifier hs-type">Prelude</span><span class="hs-operator hs-type">.</span><span class="hs-identifier hs-type">Eq</span><span class="hs-special">,</span><span> </span><span class="hs-identifier hs-type">Prelude</span><span class="hs-operator hs-type">.</span><span class="hs-identifier hs-type">Ord</span><span class="hs-special">)</span><span> </span><a name="line-82"></a><span> </span><a name="line-83"></a><span class="hs-keyword">instance</span><span> </span><span class="hs-special">(</span><a href="#local-6989586621679192269"><span class="hs-identifier hs-type">a</span></a><span> </span><span class="hs-glyph">~</span><span> </span><a href="Proto.Tensorflow.Core.Example.Feature.html#Features"><span class="hs-identifier hs-type">Proto</span><span class="hs-operator hs-type">.</span><span class="hs-identifier hs-type">Tensorflow</span><span class="hs-operator hs-type">.</span><span class="hs-identifier hs-type">Core</span><span class="hs-operator hs-type">.</span><span class="hs-identifier hs-type">Example</span><span class="hs-operator hs-type">.</span><span class="hs-identifier hs-type">Feature</span><span class="hs-operator hs-type">.</span><span class="hs-identifier hs-type">Features</span></a><span class="hs-special">,</span><span> </span><a name="line-84"></a><span> </span><a href="#local-6989586621679192270"><span class="hs-identifier hs-type">b</span></a><span> </span><span class="hs-glyph">~</span><span> </span><a href="Proto.Tensorflow.Core.Example.Feature.html#Features"><span class="hs-identifier hs-type">Proto</span><span class="hs-operator hs-type">.</span><span class="hs-identifier hs-type">Tensorflow</span><span class="hs-operator hs-type">.</span><span class="hs-identifier hs-type">Core</span><span class="hs-operator hs-type">.</span><span class="hs-identifier hs-type">Example</span><span class="hs-operator hs-type">.</span><span class="hs-identifier hs-type">Feature</span><span class="hs-operator hs-type">.</span><span class="hs-identifier hs-type">Features</span></a><span class="hs-special">,</span><span> </span><a name="line-85"></a><span> </span><span class="hs-identifier hs-type">Prelude</span><span class="hs-operator hs-type">.</span><span class="hs-identifier hs-type">Functor</span><span> </span><a href="#local-6989586621679192271"><span class="hs-identifier hs-type">f</span></a><span class="hs-special">)</span><span> </span><span class="hs-glyph">=></span><span> </span><a name="line-86"></a><span> </span><span class="hs-identifier hs-type">Lens</span><span class="hs-operator hs-type">.</span><span class="hs-identifier hs-type">Labels</span><span class="hs-operator hs-type">.</span><span class="hs-identifier hs-type">HasLens</span><span> </span><span class="hs-string">"context"</span><span> </span><a href="#local-6989586621679192271"><span class="hs-identifier hs-type">f</span></a><span> </span><a href="Proto.Tensorflow.Core.Example.Example.html#SequenceExample"><span class="hs-identifier hs-type">SequenceExample</span></a><span> </span><a href="Proto.Tensorflow.Core.Example.Example.html#SequenceExample"><span class="hs-identifier hs-type">SequenceExample</span></a><span> </span><a href="#local-6989586621679192269"><span class="hs-identifier hs-type">a</span></a><span> </span><a href="#local-6989586621679192270"><span class="hs-identifier hs-type">b</span></a><span> </span><a name="line-87"></a><span> </span><span class="hs-keyword">where</span><span> </span><a name="line-88"></a><span> </span><a name="local-8214565720323801034"><span class="hs-identifier">lensOf</span></a><span> </span><span class="hs-identifier">_</span><span> </span><a name="line-89"></a><span> </span><span class="hs-glyph">=</span><span> </span><span class="hs-special">(</span><span class="hs-identifier hs-var">Prelude</span><span class="hs-glyph">..</span><span class="hs-special">)</span><span> </span><a name="line-90"></a><span> </span><span class="hs-special">(</span><span class="hs-identifier hs-var">Lens</span><span class="hs-operator hs-var">.</span><span class="hs-identifier hs-var">Family2</span><span class="hs-operator hs-var">.</span><span class="hs-identifier hs-var">Unchecked</span><span class="hs-operator hs-var">.</span><span class="hs-identifier hs-var">lens</span><span> </span><span class="hs-identifier">_SequenceExample'context</span><span> </span><a name="line-91"></a><span> </span><span class="hs-special">(</span><span class="hs-glyph">\</span><span> </span><a name="local-6989586621679192272"><a href="#local-6989586621679192272"><span class="hs-identifier">x__</span></a></a><span> </span><a name="local-6989586621679192273"><a href="#local-6989586621679192273"><span class="hs-identifier">y__</span></a></a><span> </span><span class="hs-glyph">-></span><span> </span><a href="#local-6989586621679192272"><span class="hs-identifier hs-var">x__</span></a><span class="hs-special">{</span><span class="hs-identifier">_SequenceExample'context</span><span> </span><span class="hs-glyph">=</span><span> </span><a href="#local-6989586621679192273"><span class="hs-identifier hs-var">y__</span></a><span class="hs-special">}</span><span class="hs-special">)</span><span class="hs-special">)</span><span> </span><a name="line-92"></a><span> </span><span class="hs-special">(</span><span class="hs-identifier hs-var">Data</span><span class="hs-operator hs-var">.</span><span class="hs-identifier hs-var">ProtoLens</span><span class="hs-operator hs-var">.</span><span class="hs-identifier hs-var">maybeLens</span><span> </span><span class="hs-identifier hs-var">Data</span><span class="hs-operator hs-var">.</span><span class="hs-identifier hs-var">Default</span><span class="hs-operator hs-var">.</span><span class="hs-identifier hs-var">Class</span><span class="hs-operator hs-var">.</span><span class="hs-identifier hs-var">def</span><span class="hs-special">)</span><span> </span><a name="line-93"></a><span> </span><a name="line-94"></a><span class="hs-keyword">instance</span><span> </span><span class="hs-special">(</span><a href="#local-6989586621679192264"><span class="hs-identifier hs-type">a</span></a><span> </span><span class="hs-glyph">~</span><span> </span><a name="line-95"></a><span> </span><span class="hs-identifier hs-type">Prelude</span><span class="hs-operator hs-type">.</span><span class="hs-identifier hs-type">Maybe</span><span> </span><a href="Proto.Tensorflow.Core.Example.Feature.html#Features"><span class="hs-identifier hs-type">Proto</span><span class="hs-operator hs-type">.</span><span class="hs-identifier hs-type">Tensorflow</span><span class="hs-operator hs-type">.</span><span class="hs-identifier hs-type">Core</span><span class="hs-operator hs-type">.</span><span class="hs-identifier hs-type">Example</span><span class="hs-operator hs-type">.</span><span class="hs-identifier hs-type">Feature</span><span class="hs-operator hs-type">.</span><span class="hs-identifier hs-type">Features</span></a><span class="hs-special">,</span><span> </span><a name="line-96"></a><span> </span><a href="#local-6989586621679192265"><span class="hs-identifier hs-type">b</span></a><span> </span><span class="hs-glyph">~</span><span> </span><span class="hs-identifier hs-type">Prelude</span><span class="hs-operator hs-type">.</span><span class="hs-identifier hs-type">Maybe</span><span> </span><a href="Proto.Tensorflow.Core.Example.Feature.html#Features"><span class="hs-identifier hs-type">Proto</span><span class="hs-operator hs-type">.</span><span class="hs-identifier hs-type">Tensorflow</span><span class="hs-operator hs-type">.</span><span class="hs-identifier hs-type">Core</span><span class="hs-operator hs-type">.</span><span class="hs-identifier hs-type">Example</span><span class="hs-operator hs-type">.</span><span class="hs-identifier hs-type">Feature</span><span class="hs-operator hs-type">.</span><span class="hs-identifier hs-type">Features</span></a><span class="hs-special">,</span><span> </span><a name="line-97"></a><span> </span><span class="hs-identifier hs-type">Prelude</span><span class="hs-operator hs-type">.</span><span class="hs-identifier hs-type">Functor</span><span> </span><a href="#local-6989586621679192266"><span class="hs-identifier hs-type">f</span></a><span class="hs-special">)</span><span> </span><span class="hs-glyph">=></span><span> </span><a name="line-98"></a><span> </span><span class="hs-identifier hs-type">Lens</span><span class="hs-operator hs-type">.</span><span class="hs-identifier hs-type">Labels</span><span class="hs-operator hs-type">.</span><span class="hs-identifier hs-type">HasLens</span><span> </span><span class="hs-string">"maybe'context"</span><span> </span><a href="#local-6989586621679192266"><span class="hs-identifier hs-type">f</span></a><span> </span><a href="Proto.Tensorflow.Core.Example.Example.html#SequenceExample"><span class="hs-identifier hs-type">SequenceExample</span></a><span> </span><a name="line-99"></a><span> </span><a href="Proto.Tensorflow.Core.Example.Example.html#SequenceExample"><span class="hs-identifier hs-type">SequenceExample</span></a><span> </span><a name="line-100"></a><span> </span><a href="#local-6989586621679192264"><span class="hs-identifier hs-type">a</span></a><span> </span><a name="line-101"></a><span> </span><a href="#local-6989586621679192265"><span class="hs-identifier hs-type">b</span></a><span> </span><a name="line-102"></a><span> </span><span class="hs-keyword">where</span><span> </span><a name="line-103"></a><span> </span><a name="local-8214565720323801034"><span class="hs-identifier">lensOf</span></a><span> </span><span class="hs-identifier">_</span><span> </span><a name="line-104"></a><span> </span><span class="hs-glyph">=</span><span> </span><span class="hs-special">(</span><span class="hs-identifier hs-var">Prelude</span><span class="hs-glyph">..</span><span class="hs-special">)</span><span> </span><a name="line-105"></a><span> </span><span class="hs-special">(</span><span class="hs-identifier hs-var">Lens</span><span class="hs-operator hs-var">.</span><span class="hs-identifier hs-var">Family2</span><span class="hs-operator hs-var">.</span><span class="hs-identifier hs-var">Unchecked</span><span class="hs-operator hs-var">.</span><span class="hs-identifier hs-var">lens</span><span> </span><span class="hs-identifier">_SequenceExample'context</span><span> </span><a name="line-106"></a><span> </span><span class="hs-special">(</span><span class="hs-glyph">\</span><span> </span><a name="local-6989586621679192267"><a href="#local-6989586621679192267"><span class="hs-identifier">x__</span></a></a><span> </span><a name="local-6989586621679192268"><a href="#local-6989586621679192268"><span class="hs-identifier">y__</span></a></a><span> </span><span class="hs-glyph">-></span><span> </span><a href="#local-6989586621679192267"><span class="hs-identifier hs-var">x__</span></a><span class="hs-special">{</span><span class="hs-identifier">_SequenceExample'context</span><span> </span><span class="hs-glyph">=</span><span> </span><a href="#local-6989586621679192268"><span class="hs-identifier hs-var">y__</span></a><span class="hs-special">}</span><span class="hs-special">)</span><span class="hs-special">)</span><span> </span><a name="line-107"></a><span> </span><span class="hs-identifier hs-var">Prelude</span><span class="hs-operator hs-var">.</span><span class="hs-identifier hs-var">id</span><span> </span><a name="line-108"></a><span> </span><a name="line-109"></a><span class="hs-keyword">instance</span><span> </span><span class="hs-special">(</span><a href="#local-6989586621679192259"><span class="hs-identifier hs-type">a</span></a><span> </span><span class="hs-glyph">~</span><span> </span><a href="Proto.Tensorflow.Core.Example.Feature.html#FeatureLists"><span class="hs-identifier hs-type">Proto</span><span class="hs-operator hs-type">.</span><span class="hs-identifier hs-type">Tensorflow</span><span class="hs-operator hs-type">.</span><span class="hs-identifier hs-type">Core</span><span class="hs-operator hs-type">.</span><span class="hs-identifier hs-type">Example</span><span class="hs-operator hs-type">.</span><span class="hs-identifier hs-type">Feature</span><span class="hs-operator hs-type">.</span><span class="hs-identifier hs-type">FeatureLists</span></a><span class="hs-special">,</span><span> </span><a name="line-110"></a><span> </span><a href="#local-6989586621679192260"><span class="hs-identifier hs-type">b</span></a><span> </span><span class="hs-glyph">~</span><span> </span><a href="Proto.Tensorflow.Core.Example.Feature.html#FeatureLists"><span class="hs-identifier hs-type">Proto</span><span class="hs-operator hs-type">.</span><span class="hs-identifier hs-type">Tensorflow</span><span class="hs-operator hs-type">.</span><span class="hs-identifier hs-type">Core</span><span class="hs-operator hs-type">.</span><span class="hs-identifier hs-type">Example</span><span class="hs-operator hs-type">.</span><span class="hs-identifier hs-type">Feature</span><span class="hs-operator hs-type">.</span><span class="hs-identifier hs-type">FeatureLists</span></a><span class="hs-special">,</span><span> </span><a name="line-111"></a><span> </span><span class="hs-identifier hs-type">Prelude</span><span class="hs-operator hs-type">.</span><span class="hs-identifier hs-type">Functor</span><span> </span><a href="#local-6989586621679192261"><span class="hs-identifier hs-type">f</span></a><span class="hs-special">)</span><span> </span><span class="hs-glyph">=></span><span> </span><a name="line-112"></a><span> </span><span class="hs-identifier hs-type">Lens</span><span class="hs-operator hs-type">.</span><span class="hs-identifier hs-type">Labels</span><span class="hs-operator hs-type">.</span><span class="hs-identifier hs-type">HasLens</span><span> </span><span class="hs-string">"featureLists"</span><span> </span><a href="#local-6989586621679192261"><span class="hs-identifier hs-type">f</span></a><span> </span><a href="Proto.Tensorflow.Core.Example.Example.html#SequenceExample"><span class="hs-identifier hs-type">SequenceExample</span></a><span> </span><a name="line-113"></a><span> </span><a href="Proto.Tensorflow.Core.Example.Example.html#SequenceExample"><span class="hs-identifier hs-type">SequenceExample</span></a><span> </span><a name="line-114"></a><span> </span><a href="#local-6989586621679192259"><span class="hs-identifier hs-type">a</span></a><span> </span><a name="line-115"></a><span> </span><a href="#local-6989586621679192260"><span class="hs-identifier hs-type">b</span></a><span> </span><a name="line-116"></a><span> </span><span class="hs-keyword">where</span><span> </span><a name="line-117"></a><span> </span><a name="local-8214565720323801034"><span class="hs-identifier">lensOf</span></a><span> </span><span class="hs-identifier">_</span><span> </span><a name="line-118"></a><span> </span><span class="hs-glyph">=</span><span> </span><span class="hs-special">(</span><span class="hs-identifier hs-var">Prelude</span><span class="hs-glyph">..</span><span class="hs-special">)</span><span> </span><a name="line-119"></a><span> </span><span class="hs-special">(</span><span class="hs-identifier hs-var">Lens</span><span class="hs-operator hs-var">.</span><span class="hs-identifier hs-var">Family2</span><span class="hs-operator hs-var">.</span><span class="hs-identifier hs-var">Unchecked</span><span class="hs-operator hs-var">.</span><span class="hs-identifier hs-var">lens</span><span> </span><span class="hs-identifier">_SequenceExample'featureLists</span><span> </span><a name="line-120"></a><span> </span><span class="hs-special">(</span><span class="hs-glyph">\</span><span> </span><a name="local-6989586621679192262"><a href="#local-6989586621679192262"><span class="hs-identifier">x__</span></a></a><span> </span><a name="local-6989586621679192263"><a href="#local-6989586621679192263"><span class="hs-identifier">y__</span></a></a><span> </span><span class="hs-glyph">-></span><span> </span><a href="#local-6989586621679192262"><span class="hs-identifier hs-var">x__</span></a><span class="hs-special">{</span><span class="hs-identifier">_SequenceExample'featureLists</span><span> </span><span class="hs-glyph">=</span><span> </span><a href="#local-6989586621679192263"><span class="hs-identifier hs-var">y__</span></a><span class="hs-special">}</span><span class="hs-special">)</span><span class="hs-special">)</span><span> </span><a name="line-121"></a><span> </span><span class="hs-special">(</span><span class="hs-identifier hs-var">Data</span><span class="hs-operator hs-var">.</span><span class="hs-identifier hs-var">ProtoLens</span><span class="hs-operator hs-var">.</span><span class="hs-identifier hs-var">maybeLens</span><span> </span><span class="hs-identifier hs-var">Data</span><span class="hs-operator hs-var">.</span><span class="hs-identifier hs-var">Default</span><span class="hs-operator hs-var">.</span><span class="hs-identifier hs-var">Class</span><span class="hs-operator hs-var">.</span><span class="hs-identifier hs-var">def</span><span class="hs-special">)</span><span> </span><a name="line-122"></a><span> </span><a name="line-123"></a><span class="hs-keyword">instance</span><span> </span><span class="hs-special">(</span><a href="#local-6989586621679192254"><span class="hs-identifier hs-type">a</span></a><span> </span><span class="hs-glyph">~</span><span> </span><a name="line-124"></a><span> </span><span class="hs-identifier hs-type">Prelude</span><span class="hs-operator hs-type">.</span><span class="hs-identifier hs-type">Maybe</span><span> </span><a href="Proto.Tensorflow.Core.Example.Feature.html#FeatureLists"><span class="hs-identifier hs-type">Proto</span><span class="hs-operator hs-type">.</span><span class="hs-identifier hs-type">Tensorflow</span><span class="hs-operator hs-type">.</span><span class="hs-identifier hs-type">Core</span><span class="hs-operator hs-type">.</span><span class="hs-identifier hs-type">Example</span><span class="hs-operator hs-type">.</span><span class="hs-identifier hs-type">Feature</span><span class="hs-operator hs-type">.</span><span class="hs-identifier hs-type">FeatureLists</span></a><span class="hs-special">,</span><span> </span><a name="line-125"></a><span> </span><a href="#local-6989586621679192255"><span class="hs-identifier hs-type">b</span></a><span> </span><span class="hs-glyph">~</span><span> </span><a name="line-126"></a><span> </span><span class="hs-identifier hs-type">Prelude</span><span class="hs-operator hs-type">.</span><span class="hs-identifier hs-type">Maybe</span><span> </span><a href="Proto.Tensorflow.Core.Example.Feature.html#FeatureLists"><span class="hs-identifier hs-type">Proto</span><span class="hs-operator hs-type">.</span><span class="hs-identifier hs-type">Tensorflow</span><span class="hs-operator hs-type">.</span><span class="hs-identifier hs-type">Core</span><span class="hs-operator hs-type">.</span><span class="hs-identifier hs-type">Example</span><span class="hs-operator hs-type">.</span><span class="hs-identifier hs-type">Feature</span><span class="hs-operator hs-type">.</span><span class="hs-identifier hs-type">FeatureLists</span></a><span class="hs-special">,</span><span> </span><a name="line-127"></a><span> </span><span class="hs-identifier hs-type">Prelude</span><span class="hs-operator hs-type">.</span><span class="hs-identifier hs-type">Functor</span><span> </span><a href="#local-6989586621679192256"><span class="hs-identifier hs-type">f</span></a><span class="hs-special">)</span><span> </span><span class="hs-glyph">=></span><span> </span><a name="line-128"></a><span> </span><span class="hs-identifier hs-type">Lens</span><span class="hs-operator hs-type">.</span><span class="hs-identifier hs-type">Labels</span><span class="hs-operator hs-type">.</span><span class="hs-identifier hs-type">HasLens</span><span> </span><span class="hs-string">"maybe'featureLists"</span><span> </span><a href="#local-6989586621679192256"><span class="hs-identifier hs-type">f</span></a><span> </span><a href="Proto.Tensorflow.Core.Example.Example.html#SequenceExample"><span class="hs-identifier hs-type">SequenceExample</span></a><span> </span><a name="line-129"></a><span> </span><a href="Proto.Tensorflow.Core.Example.Example.html#SequenceExample"><span class="hs-identifier hs-type">SequenceExample</span></a><span> </span><a name="line-130"></a><span> </span><a href="#local-6989586621679192254"><span class="hs-identifier hs-type">a</span></a><span> </span><a name="line-131"></a><span> </span><a href="#local-6989586621679192255"><span class="hs-identifier hs-type">b</span></a><span> </span><a name="line-132"></a><span> </span><span class="hs-keyword">where</span><span> </span><a name="line-133"></a><span> </span><a name="local-8214565720323801034"><span class="hs-identifier">lensOf</span></a><span> </span><span class="hs-identifier">_</span><span> </span><a name="line-134"></a><span> </span><span class="hs-glyph">=</span><span> </span><span class="hs-special">(</span><span class="hs-identifier hs-var">Prelude</span><span class="hs-glyph">..</span><span class="hs-special">)</span><span> </span><a name="line-135"></a><span> </span><span class="hs-special">(</span><span class="hs-identifier hs-var">Lens</span><span class="hs-operator hs-var">.</span><span class="hs-identifier hs-var">Family2</span><span class="hs-operator hs-var">.</span><span class="hs-identifier hs-var">Unchecked</span><span class="hs-operator hs-var">.</span><span class="hs-identifier hs-var">lens</span><span> </span><span class="hs-identifier">_SequenceExample'featureLists</span><span> </span><a name="line-136"></a><span> </span><span class="hs-special">(</span><span class="hs-glyph">\</span><span> </span><a name="local-6989586621679192257"><a href="#local-6989586621679192257"><span class="hs-identifier">x__</span></a></a><span> </span><a name="local-6989586621679192258"><a href="#local-6989586621679192258"><span class="hs-identifier">y__</span></a></a><span> </span><span class="hs-glyph">-></span><span> </span><a href="#local-6989586621679192257"><span class="hs-identifier hs-var">x__</span></a><span class="hs-special">{</span><span class="hs-identifier">_SequenceExample'featureLists</span><span> </span><span class="hs-glyph">=</span><span> </span><a href="#local-6989586621679192258"><span class="hs-identifier hs-var">y__</span></a><span class="hs-special">}</span><span class="hs-special">)</span><span class="hs-special">)</span><span> </span><a name="line-137"></a><span> </span><span class="hs-identifier hs-var">Prelude</span><span class="hs-operator hs-var">.</span><span class="hs-identifier hs-var">id</span><span> </span><a name="line-138"></a><span> </span><a name="line-139"></a><span class="hs-keyword">instance</span><span> </span><span class="hs-identifier hs-type">Data</span><span class="hs-operator hs-type">.</span><span class="hs-identifier hs-type">Default</span><span class="hs-operator hs-type">.</span><span class="hs-identifier hs-type">Class</span><span class="hs-operator hs-type">.</span><span class="hs-identifier hs-type">Default</span><span> </span><a href="Proto.Tensorflow.Core.Example.Example.html#SequenceExample"><span class="hs-identifier hs-type">SequenceExample</span></a><span> </span><span class="hs-keyword">where</span><span> </span><a name="line-140"></a><span> </span><a name="local-8214565720323799537"><span class="hs-identifier">def</span></a><span> </span><a name="line-141"></a><span> </span><span class="hs-glyph">=</span><span> </span><a href="Proto.Tensorflow.Core.Example.Example.html#SequenceExample"><span class="hs-identifier hs-var">SequenceExample</span></a><span class="hs-special">{</span><span class="hs-identifier">_SequenceExample'context</span><span> </span><span class="hs-glyph">=</span><span> </span><span class="hs-identifier hs-var">Prelude</span><span class="hs-operator hs-var">.</span><span class="hs-identifier hs-var">Nothing</span><span class="hs-special">,</span><span> </span><a name="line-142"></a><span> </span><span class="hs-identifier">_SequenceExample'featureLists</span><span> </span><span class="hs-glyph">=</span><span> </span><span class="hs-identifier hs-var">Prelude</span><span class="hs-operator hs-var">.</span><span class="hs-identifier hs-var">Nothing</span><span class="hs-special">}</span><span> </span><a name="line-143"></a><span> </span><a name="line-144"></a><span class="hs-keyword">instance</span><span> </span><span class="hs-identifier hs-type">Data</span><span class="hs-operator hs-type">.</span><span class="hs-identifier hs-type">ProtoLens</span><span class="hs-operator hs-type">.</span><span class="hs-identifier hs-type">Message</span><span> </span><a href="Proto.Tensorflow.Core.Example.Example.html#SequenceExample"><span class="hs-identifier hs-type">SequenceExample</span></a><span> </span><span class="hs-keyword">where</span><span> </span><a name="line-145"></a><span> </span><a name="local-8214565720323799507"><span class="hs-identifier">descriptor</span></a><span> </span><a name="line-146"></a><span> </span><span class="hs-glyph">=</span><span> </span><span class="hs-keyword">let</span><span> </span><a name="local-6989586621679192252"><a href="#local-6989586621679192252"><span class="hs-identifier">context__field_descriptor</span></a></a><span> </span><a name="line-147"></a><span> </span><span class="hs-glyph">=</span><span> </span><span class="hs-identifier hs-var">Data</span><span class="hs-operator hs-var">.</span><span class="hs-identifier hs-var">ProtoLens</span><span class="hs-operator hs-var">.</span><span class="hs-identifier hs-var">FieldDescriptor</span><span> </span><span class="hs-string">"context"</span><span> </span><a name="line-148"></a><span> </span><span class="hs-special">(</span><span class="hs-identifier hs-var">Data</span><span class="hs-operator hs-var">.</span><span class="hs-identifier hs-var">ProtoLens</span><span class="hs-operator hs-var">.</span><span class="hs-identifier hs-var">MessageField</span><span> </span><span class="hs-glyph">::</span><span> </span><a name="line-149"></a><span> </span><span class="hs-identifier hs-type">Data</span><span class="hs-operator hs-type">.</span><span class="hs-identifier hs-type">ProtoLens</span><span class="hs-operator hs-type">.</span><span class="hs-identifier hs-type">FieldTypeDescriptor</span><span> </span><a name="line-150"></a><span> </span><a href="Proto.Tensorflow.Core.Example.Feature.html#Features"><span class="hs-identifier hs-type">Proto</span><span class="hs-operator hs-type">.</span><span class="hs-identifier hs-type">Tensorflow</span><span class="hs-operator hs-type">.</span><span class="hs-identifier hs-type">Core</span><span class="hs-operator hs-type">.</span><span class="hs-identifier hs-type">Example</span><span class="hs-operator hs-type">.</span><span class="hs-identifier hs-type">Feature</span><span class="hs-operator hs-type">.</span><span class="hs-identifier hs-type">Features</span></a><span class="hs-special">)</span><span> </span><a name="line-151"></a><span> </span><span class="hs-special">(</span><span class="hs-identifier hs-var">Data</span><span class="hs-operator hs-var">.</span><span class="hs-identifier hs-var">ProtoLens</span><span class="hs-operator hs-var">.</span><span class="hs-identifier hs-var">OptionalField</span><span> </span><a href="Proto.Tensorflow.Core.Example.Example.html#maybe%27context"><span class="hs-identifier hs-var">maybe'context</span></a><span class="hs-special">)</span><span> </span><a name="line-152"></a><span> </span><span class="hs-glyph">::</span><span> </span><span class="hs-identifier hs-type">Data</span><span class="hs-operator hs-type">.</span><span class="hs-identifier hs-type">ProtoLens</span><span class="hs-operator hs-type">.</span><span class="hs-identifier hs-type">FieldDescriptor</span><span> </span><a href="Proto.Tensorflow.Core.Example.Example.html#SequenceExample"><span class="hs-identifier hs-type">SequenceExample</span></a><span> </span><a name="line-153"></a><span> </span><a name="local-6989586621679192253"><a href="#local-6989586621679192253"><span class="hs-identifier">featureLists__field_descriptor</span></a></a><span> </span><a name="line-154"></a><span> </span><span class="hs-glyph">=</span><span> </span><span class="hs-identifier hs-var">Data</span><span class="hs-operator hs-var">.</span><span class="hs-identifier hs-var">ProtoLens</span><span class="hs-operator hs-var">.</span><span class="hs-identifier hs-var">FieldDescriptor</span><span> </span><span class="hs-string">"feature_lists"</span><span> </span><a name="line-155"></a><span> </span><span class="hs-special">(</span><span class="hs-identifier hs-var">Data</span><span class="hs-operator hs-var">.</span><span class="hs-identifier hs-var">ProtoLens</span><span class="hs-operator hs-var">.</span><span class="hs-identifier hs-var">MessageField</span><span> </span><span class="hs-glyph">::</span><span> </span><a name="line-156"></a><span> </span><span class="hs-identifier hs-type">Data</span><span class="hs-operator hs-type">.</span><span class="hs-identifier hs-type">ProtoLens</span><span class="hs-operator hs-type">.</span><span class="hs-identifier hs-type">FieldTypeDescriptor</span><span> </span><a name="line-157"></a><span> </span><a href="Proto.Tensorflow.Core.Example.Feature.html#FeatureLists"><span class="hs-identifier hs-type">Proto</span><span class="hs-operator hs-type">.</span><span class="hs-identifier hs-type">Tensorflow</span><span class="hs-operator hs-type">.</span><span class="hs-identifier hs-type">Core</span><span class="hs-operator hs-type">.</span><span class="hs-identifier hs-type">Example</span><span class="hs-operator hs-type">.</span><span class="hs-identifier hs-type">Feature</span><span class="hs-operator hs-type">.</span><span class="hs-identifier hs-type">FeatureLists</span></a><span class="hs-special">)</span><span> </span><a name="line-158"></a><span> </span><span class="hs-special">(</span><span class="hs-identifier hs-var">Data</span><span class="hs-operator hs-var">.</span><span class="hs-identifier hs-var">ProtoLens</span><span class="hs-operator hs-var">.</span><span class="hs-identifier hs-var">OptionalField</span><span> </span><a href="Proto.Tensorflow.Core.Example.Example.html#maybe%27featureLists"><span class="hs-identifier hs-var">maybe'featureLists</span></a><span class="hs-special">)</span><span> </span><a name="line-159"></a><span> </span><span class="hs-glyph">::</span><span> </span><span class="hs-identifier hs-type">Data</span><span class="hs-operator hs-type">.</span><span class="hs-identifier hs-type">ProtoLens</span><span class="hs-operator hs-type">.</span><span class="hs-identifier hs-type">FieldDescriptor</span><span> </span><a href="Proto.Tensorflow.Core.Example.Example.html#SequenceExample"><span class="hs-identifier hs-type">SequenceExample</span></a><span> </span><a name="line-160"></a><span> </span><span class="hs-keyword">in</span><span> </span><a name="line-161"></a><span> </span><span class="hs-identifier hs-var">Data</span><span class="hs-operator hs-var">.</span><span class="hs-identifier hs-var">ProtoLens</span><span class="hs-operator hs-var">.</span><span class="hs-identifier hs-var">MessageDescriptor</span><span> </span><a name="line-162"></a><span> </span><span class="hs-special">(</span><span class="hs-identifier hs-var">Data</span><span class="hs-operator hs-var">.</span><span class="hs-identifier hs-var">Text</span><span class="hs-operator hs-var">.</span><span class="hs-identifier hs-var">pack</span><span> </span><span class="hs-string">"tensorflow.SequenceExample"</span><span class="hs-special">)</span><span> </span><a name="line-163"></a><span> </span><span class="hs-special">(</span><span class="hs-identifier hs-var">Data</span><span class="hs-operator hs-var">.</span><span class="hs-identifier hs-var">Map</span><span class="hs-operator hs-var">.</span><span class="hs-identifier hs-var">fromList</span><span> </span><a name="line-164"></a><span> </span><span class="hs-special">[</span><span class="hs-special">(</span><span class="hs-identifier hs-var">Data</span><span class="hs-operator hs-var">.</span><span class="hs-identifier hs-var">ProtoLens</span><span class="hs-operator hs-var">.</span><span class="hs-identifier hs-var">Tag</span><span> </span><span class="hs-number">1</span><span class="hs-special">,</span><span> </span><a href="#local-6989586621679192252"><span class="hs-identifier hs-var">context__field_descriptor</span></a><span class="hs-special">)</span><span class="hs-special">,</span><span> </span><a name="line-165"></a><span> </span><span class="hs-special">(</span><span class="hs-identifier hs-var">Data</span><span class="hs-operator hs-var">.</span><span class="hs-identifier hs-var">ProtoLens</span><span class="hs-operator hs-var">.</span><span class="hs-identifier hs-var">Tag</span><span> </span><span class="hs-number">2</span><span class="hs-special">,</span><span> </span><a href="#local-6989586621679192253"><span class="hs-identifier hs-var">featureLists__field_descriptor</span></a><span class="hs-special">)</span><span class="hs-special">]</span><span class="hs-special">)</span><span> </span><a name="line-166"></a><span> </span><span class="hs-special">(</span><span class="hs-identifier hs-var">Data</span><span class="hs-operator hs-var">.</span><span class="hs-identifier hs-var">Map</span><span class="hs-operator hs-var">.</span><span class="hs-identifier hs-var">fromList</span><span> </span><a name="line-167"></a><span> </span><span class="hs-special">[</span><span class="hs-special">(</span><span class="hs-string">"context"</span><span class="hs-special">,</span><span> </span><a href="#local-6989586621679192252"><span class="hs-identifier hs-var">context__field_descriptor</span></a><span class="hs-special">)</span><span class="hs-special">,</span><span> </span><a name="line-168"></a><span> </span><span class="hs-special">(</span><span class="hs-string">"feature_lists"</span><span class="hs-special">,</span><span> </span><a href="#local-6989586621679192253"><span class="hs-identifier hs-var">featureLists__field_descriptor</span></a><span class="hs-special">)</span><span class="hs-special">]</span><span class="hs-special">)</span><span> </span><a name="line-169"></a><span> </span><a name="line-170"></a><span class="hs-identifier">context</span><span> </span><span class="hs-glyph">::</span><span> </span><a name="line-171"></a><span> </span><span class="hs-keyword">forall</span><span> </span><a name="local-6989586621679192247"><a href="#local-6989586621679192247"><span class="hs-identifier">f</span></a></a><span> </span><a name="local-6989586621679192248"><a href="#local-6989586621679192248"><span class="hs-identifier">s</span></a></a><span> </span><a name="local-6989586621679192249"><a href="#local-6989586621679192249"><span class="hs-identifier">t</span></a></a><span> </span><a name="local-6989586621679192250"><a href="#local-6989586621679192250"><span class="hs-identifier">a</span></a></a><span> </span><a name="local-6989586621679192251"><a href="#local-6989586621679192251"><span class="hs-identifier">b</span></a></a><span> </span><span class="hs-operator">.</span><span> </span><span class="hs-special">(</span><span class="hs-identifier hs-type">Lens</span><span class="hs-operator hs-type">.</span><span class="hs-identifier hs-type">Labels</span><span class="hs-operator hs-type">.</span><span class="hs-identifier hs-type">HasLens</span><span> </span><span class="hs-string">"context"</span><span> </span><a href="#local-6989586621679192247"><span class="hs-identifier hs-type">f</span></a><span> </span><a href="#local-6989586621679192248"><span class="hs-identifier hs-type">s</span></a><span> </span><a href="#local-6989586621679192249"><span class="hs-identifier hs-type">t</span></a><span> </span><a href="#local-6989586621679192250"><span class="hs-identifier hs-type">a</span></a><span> </span><a href="#local-6989586621679192251"><span class="hs-identifier hs-type">b</span></a><span class="hs-special">)</span><span> </span><span class="hs-glyph">=></span><span> </span><a name="line-172"></a><span> </span><span class="hs-identifier hs-type">Lens</span><span class="hs-operator hs-type">.</span><span class="hs-identifier hs-type">Family2</span><span class="hs-operator hs-type">.</span><span class="hs-identifier hs-type">LensLike</span><span> </span><a href="#local-6989586621679192247"><span class="hs-identifier hs-type">f</span></a><span> </span><a href="#local-6989586621679192248"><span class="hs-identifier hs-type">s</span></a><span> </span><a href="#local-6989586621679192249"><span class="hs-identifier hs-type">t</span></a><span> </span><a href="#local-6989586621679192250"><span class="hs-identifier hs-type">a</span></a><span> </span><a href="#local-6989586621679192251"><span class="hs-identifier hs-type">b</span></a><span> </span><a name="line-173"></a><a name="context"><a href="Proto.Tensorflow.Core.Example.Example.html#context"><span class="hs-identifier">context</span></a></a><span> </span><a name="line-174"></a><span> </span><span class="hs-glyph">=</span><span> </span><span class="hs-identifier hs-var">Lens</span><span class="hs-operator hs-var">.</span><span class="hs-identifier hs-var">Labels</span><span class="hs-operator hs-var">.</span><span class="hs-identifier hs-var">lensOf</span><span> </span><a name="line-175"></a><span> </span><span class="hs-special">(</span><span class="hs-special">(</span><span class="hs-identifier hs-var">Lens</span><span class="hs-operator hs-var">.</span><span class="hs-identifier hs-var">Labels</span><span class="hs-operator hs-var">.</span><span class="hs-identifier hs-var">proxy</span><span class="hs-operator hs-var">#</span><span class="hs-special">)</span><span> </span><span class="hs-glyph">::</span><span> </span><span class="hs-special">(</span><span class="hs-identifier hs-type">Lens</span><span class="hs-operator hs-type">.</span><span class="hs-identifier hs-type">Labels</span><span class="hs-operator hs-type">.</span><span class="hs-identifier hs-type">Proxy</span><span class="hs-operator hs-type">#</span><span class="hs-special">)</span><span> </span><span class="hs-string">"context"</span><span class="hs-special">)</span><span> </span><a name="line-176"></a><span> </span><a name="line-177"></a><span class="hs-identifier">featureLists</span><span> </span><span class="hs-glyph">::</span><span> </span><a name="line-178"></a><span> </span><span class="hs-keyword">forall</span><span> </span><a name="local-6989586621679192242"><a href="#local-6989586621679192242"><span class="hs-identifier">f</span></a></a><span> </span><a name="local-6989586621679192243"><a href="#local-6989586621679192243"><span class="hs-identifier">s</span></a></a><span> </span><a name="local-6989586621679192244"><a href="#local-6989586621679192244"><span class="hs-identifier">t</span></a></a><span> </span><a name="local-6989586621679192245"><a href="#local-6989586621679192245"><span class="hs-identifier">a</span></a></a><span> </span><a name="local-6989586621679192246"><a href="#local-6989586621679192246"><span class="hs-identifier">b</span></a></a><span> </span><span class="hs-operator">.</span><span> </span><a name="line-179"></a><span> </span><span class="hs-special">(</span><span class="hs-identifier hs-type">Lens</span><span class="hs-operator hs-type">.</span><span class="hs-identifier hs-type">Labels</span><span class="hs-operator hs-type">.</span><span class="hs-identifier hs-type">HasLens</span><span> </span><span class="hs-string">"featureLists"</span><span> </span><a href="#local-6989586621679192242"><span class="hs-identifier hs-type">f</span></a><span> </span><a href="#local-6989586621679192243"><span class="hs-identifier hs-type">s</span></a><span> </span><a href="#local-6989586621679192244"><span class="hs-identifier hs-type">t</span></a><span> </span><a href="#local-6989586621679192245"><span class="hs-identifier hs-type">a</span></a><span> </span><a href="#local-6989586621679192246"><span class="hs-identifier hs-type">b</span></a><span class="hs-special">)</span><span> </span><span class="hs-glyph">=></span><span> </span><a name="line-180"></a><span> </span><span class="hs-identifier hs-type">Lens</span><span class="hs-operator hs-type">.</span><span class="hs-identifier hs-type">Family2</span><span class="hs-operator hs-type">.</span><span class="hs-identifier hs-type">LensLike</span><span> </span><a href="#local-6989586621679192242"><span class="hs-identifier hs-type">f</span></a><span> </span><a href="#local-6989586621679192243"><span class="hs-identifier hs-type">s</span></a><span> </span><a href="#local-6989586621679192244"><span class="hs-identifier hs-type">t</span></a><span> </span><a href="#local-6989586621679192245"><span class="hs-identifier hs-type">a</span></a><span> </span><a href="#local-6989586621679192246"><span class="hs-identifier hs-type">b</span></a><span> </span><a name="line-181"></a><a name="featureLists"><a href="Proto.Tensorflow.Core.Example.Example.html#featureLists"><span class="hs-identifier">featureLists</span></a></a><span> </span><a name="line-182"></a><span> </span><span class="hs-glyph">=</span><span> </span><span class="hs-identifier hs-var">Lens</span><span class="hs-operator hs-var">.</span><span class="hs-identifier hs-var">Labels</span><span class="hs-operator hs-var">.</span><span class="hs-identifier hs-var">lensOf</span><span> </span><a name="line-183"></a><span> </span><span class="hs-special">(</span><span class="hs-special">(</span><span class="hs-identifier hs-var">Lens</span><span class="hs-operator hs-var">.</span><span class="hs-identifier hs-var">Labels</span><span class="hs-operator hs-var">.</span><span class="hs-identifier hs-var">proxy</span><span class="hs-operator hs-var">#</span><span class="hs-special">)</span><span> </span><span class="hs-glyph">::</span><span> </span><span class="hs-special">(</span><span class="hs-identifier hs-type">Lens</span><span class="hs-operator hs-type">.</span><span class="hs-identifier hs-type">Labels</span><span class="hs-operator hs-type">.</span><span class="hs-identifier hs-type">Proxy</span><span class="hs-operator hs-type">#</span><span class="hs-special">)</span><span> </span><span class="hs-string">"featureLists"</span><span class="hs-special">)</span><span> </span><a name="line-184"></a><span> </span><a name="line-185"></a><span class="hs-identifier">features</span><span> </span><span class="hs-glyph">::</span><span> </span><a name="line-186"></a><span> </span><span class="hs-keyword">forall</span><span> </span><a name="local-6989586621679192237"><a href="#local-6989586621679192237"><span class="hs-identifier">f</span></a></a><span> </span><a name="local-6989586621679192238"><a href="#local-6989586621679192238"><span class="hs-identifier">s</span></a></a><span> </span><a name="local-6989586621679192239"><a href="#local-6989586621679192239"><span class="hs-identifier">t</span></a></a><span> </span><a name="local-6989586621679192240"><a href="#local-6989586621679192240"><span class="hs-identifier">a</span></a></a><span> </span><a name="local-6989586621679192241"><a href="#local-6989586621679192241"><span class="hs-identifier">b</span></a></a><span> </span><span class="hs-operator">.</span><span> </span><span class="hs-special">(</span><span class="hs-identifier hs-type">Lens</span><span class="hs-operator hs-type">.</span><span class="hs-identifier hs-type">Labels</span><span class="hs-operator hs-type">.</span><span class="hs-identifier hs-type">HasLens</span><span> </span><span class="hs-string">"features"</span><span> </span><a href="#local-6989586621679192237"><span class="hs-identifier hs-type">f</span></a><span> </span><a href="#local-6989586621679192238"><span class="hs-identifier hs-type">s</span></a><span> </span><a href="#local-6989586621679192239"><span class="hs-identifier hs-type">t</span></a><span> </span><a href="#local-6989586621679192240"><span class="hs-identifier hs-type">a</span></a><span> </span><a href="#local-6989586621679192241"><span class="hs-identifier hs-type">b</span></a><span class="hs-special">)</span><span> </span><span class="hs-glyph">=></span><span> </span><a name="line-187"></a><span> </span><span class="hs-identifier hs-type">Lens</span><span class="hs-operator hs-type">.</span><span class="hs-identifier hs-type">Family2</span><span class="hs-operator hs-type">.</span><span class="hs-identifier hs-type">LensLike</span><span> </span><a href="#local-6989586621679192237"><span class="hs-identifier hs-type">f</span></a><span> </span><a href="#local-6989586621679192238"><span class="hs-identifier hs-type">s</span></a><span> </span><a href="#local-6989586621679192239"><span class="hs-identifier hs-type">t</span></a><span> </span><a href="#local-6989586621679192240"><span class="hs-identifier hs-type">a</span></a><span> </span><a href="#local-6989586621679192241"><span class="hs-identifier hs-type">b</span></a><span> </span><a name="line-188"></a><a name="features"><a href="Proto.Tensorflow.Core.Example.Example.html#features"><span class="hs-identifier">features</span></a></a><span> </span><a name="line-189"></a><span> </span><span class="hs-glyph">=</span><span> </span><span class="hs-identifier hs-var">Lens</span><span class="hs-operator hs-var">.</span><span class="hs-identifier hs-var">Labels</span><span class="hs-operator hs-var">.</span><span class="hs-identifier hs-var">lensOf</span><span> </span><a name="line-190"></a><span> </span><span class="hs-special">(</span><span class="hs-special">(</span><span class="hs-identifier hs-var">Lens</span><span class="hs-operator hs-var">.</span><span class="hs-identifier hs-var">Labels</span><span class="hs-operator hs-var">.</span><span class="hs-identifier hs-var">proxy</span><span class="hs-operator hs-var">#</span><span class="hs-special">)</span><span> </span><span class="hs-glyph">::</span><span> </span><span class="hs-special">(</span><span class="hs-identifier hs-type">Lens</span><span class="hs-operator hs-type">.</span><span class="hs-identifier hs-type">Labels</span><span class="hs-operator hs-type">.</span><span class="hs-identifier hs-type">Proxy</span><span class="hs-operator hs-type">#</span><span class="hs-special">)</span><span> </span><span class="hs-string">"features"</span><span class="hs-special">)</span><span> </span><a name="line-191"></a><span> </span><a name="line-192"></a><span class="hs-identifier">maybe'context</span><span> </span><span class="hs-glyph">::</span><span> </span><a name="line-193"></a><span> </span><span class="hs-keyword">forall</span><span> </span><a name="local-6989586621679192232"><a href="#local-6989586621679192232"><span class="hs-identifier">f</span></a></a><span> </span><a name="local-6989586621679192233"><a href="#local-6989586621679192233"><span class="hs-identifier">s</span></a></a><span> </span><a name="local-6989586621679192234"><a href="#local-6989586621679192234"><span class="hs-identifier">t</span></a></a><span> </span><a name="local-6989586621679192235"><a href="#local-6989586621679192235"><span class="hs-identifier">a</span></a></a><span> </span><a name="local-6989586621679192236"><a href="#local-6989586621679192236"><span class="hs-identifier">b</span></a></a><span> </span><span class="hs-operator">.</span><span> </span><a name="line-194"></a><span> </span><span class="hs-special">(</span><span class="hs-identifier hs-type">Lens</span><span class="hs-operator hs-type">.</span><span class="hs-identifier hs-type">Labels</span><span class="hs-operator hs-type">.</span><span class="hs-identifier hs-type">HasLens</span><span> </span><span class="hs-string">"maybe'context"</span><span> </span><a href="#local-6989586621679192232"><span class="hs-identifier hs-type">f</span></a><span> </span><a href="#local-6989586621679192233"><span class="hs-identifier hs-type">s</span></a><span> </span><a href="#local-6989586621679192234"><span class="hs-identifier hs-type">t</span></a><span> </span><a href="#local-6989586621679192235"><span class="hs-identifier hs-type">a</span></a><span> </span><a href="#local-6989586621679192236"><span class="hs-identifier hs-type">b</span></a><span class="hs-special">)</span><span> </span><span class="hs-glyph">=></span><span> </span><a name="line-195"></a><span> </span><span class="hs-identifier hs-type">Lens</span><span class="hs-operator hs-type">.</span><span class="hs-identifier hs-type">Family2</span><span class="hs-operator hs-type">.</span><span class="hs-identifier hs-type">LensLike</span><span> </span><a href="#local-6989586621679192232"><span class="hs-identifier hs-type">f</span></a><span> </span><a href="#local-6989586621679192233"><span class="hs-identifier hs-type">s</span></a><span> </span><a href="#local-6989586621679192234"><span class="hs-identifier hs-type">t</span></a><span> </span><a href="#local-6989586621679192235"><span class="hs-identifier hs-type">a</span></a><span> </span><a href="#local-6989586621679192236"><span class="hs-identifier hs-type">b</span></a><span> </span><a name="line-196"></a><a name="maybe%27context"><a href="Proto.Tensorflow.Core.Example.Example.html#maybe%27context"><span class="hs-identifier">maybe'context</span></a></a><span> </span><a name="line-197"></a><span> </span><span class="hs-glyph">=</span><span> </span><span class="hs-identifier hs-var">Lens</span><span class="hs-operator hs-var">.</span><span class="hs-identifier hs-var">Labels</span><span class="hs-operator hs-var">.</span><span class="hs-identifier hs-var">lensOf</span><span> </span><a name="line-198"></a><span> </span><span class="hs-special">(</span><span class="hs-special">(</span><span class="hs-identifier hs-var">Lens</span><span class="hs-operator hs-var">.</span><span class="hs-identifier hs-var">Labels</span><span class="hs-operator hs-var">.</span><span class="hs-identifier hs-var">proxy</span><span class="hs-operator hs-var">#</span><span class="hs-special">)</span><span> </span><span class="hs-glyph">::</span><span> </span><span class="hs-special">(</span><span class="hs-identifier hs-type">Lens</span><span class="hs-operator hs-type">.</span><span class="hs-identifier hs-type">Labels</span><span class="hs-operator hs-type">.</span><span class="hs-identifier hs-type">Proxy</span><span class="hs-operator hs-type">#</span><span class="hs-special">)</span><span> </span><span class="hs-string">"maybe'context"</span><span class="hs-special">)</span><span> </span><a name="line-199"></a><span> </span><a name="line-200"></a><span class="hs-identifier">maybe'featureLists</span><span> </span><span class="hs-glyph">::</span><span> </span><a name="line-201"></a><span> </span><span class="hs-keyword">forall</span><span> </span><a name="local-6989586621679192227"><a href="#local-6989586621679192227"><span class="hs-identifier">f</span></a></a><span> </span><a name="local-6989586621679192228"><a href="#local-6989586621679192228"><span class="hs-identifier">s</span></a></a><span> </span><a name="local-6989586621679192229"><a href="#local-6989586621679192229"><span class="hs-identifier">t</span></a></a><span> </span><a name="local-6989586621679192230"><a href="#local-6989586621679192230"><span class="hs-identifier">a</span></a></a><span> </span><a name="local-6989586621679192231"><a href="#local-6989586621679192231"><span class="hs-identifier">b</span></a></a><span> </span><span class="hs-operator">.</span><span> </span><a name="line-202"></a><span> </span><span class="hs-special">(</span><span class="hs-identifier hs-type">Lens</span><span class="hs-operator hs-type">.</span><span class="hs-identifier hs-type">Labels</span><span class="hs-operator hs-type">.</span><span class="hs-identifier hs-type">HasLens</span><span> </span><span class="hs-string">"maybe'featureLists"</span><span> </span><a href="#local-6989586621679192227"><span class="hs-identifier hs-type">f</span></a><span> </span><a href="#local-6989586621679192228"><span class="hs-identifier hs-type">s</span></a><span> </span><a href="#local-6989586621679192229"><span class="hs-identifier hs-type">t</span></a><span> </span><a href="#local-6989586621679192230"><span class="hs-identifier hs-type">a</span></a><span> </span><a href="#local-6989586621679192231"><span class="hs-identifier hs-type">b</span></a><span class="hs-special">)</span><span> </span><span class="hs-glyph">=></span><span> </span><a name="line-203"></a><span> </span><span class="hs-identifier hs-type">Lens</span><span class="hs-operator hs-type">.</span><span class="hs-identifier hs-type">Family2</span><span class="hs-operator hs-type">.</span><span class="hs-identifier hs-type">LensLike</span><span> </span><a href="#local-6989586621679192227"><span class="hs-identifier hs-type">f</span></a><span> </span><a href="#local-6989586621679192228"><span class="hs-identifier hs-type">s</span></a><span> </span><a href="#local-6989586621679192229"><span class="hs-identifier hs-type">t</span></a><span> </span><a href="#local-6989586621679192230"><span class="hs-identifier hs-type">a</span></a><span> </span><a href="#local-6989586621679192231"><span class="hs-identifier hs-type">b</span></a><span> </span><a name="line-204"></a><a name="maybe%27featureLists"><a href="Proto.Tensorflow.Core.Example.Example.html#maybe%27featureLists"><span class="hs-identifier">maybe'featureLists</span></a></a><span> </span><a name="line-205"></a><span> </span><span class="hs-glyph">=</span><span> </span><span class="hs-identifier hs-var">Lens</span><span class="hs-operator hs-var">.</span><span class="hs-identifier hs-var">Labels</span><span class="hs-operator hs-var">.</span><span class="hs-identifier hs-var">lensOf</span><span> </span><a name="line-206"></a><span> </span><span class="hs-special">(</span><span class="hs-special">(</span><span class="hs-identifier hs-var">Lens</span><span class="hs-operator hs-var">.</span><span class="hs-identifier hs-var">Labels</span><span class="hs-operator hs-var">.</span><span class="hs-identifier hs-var">proxy</span><span class="hs-operator hs-var">#</span><span class="hs-special">)</span><span> </span><span class="hs-glyph">::</span><span> </span><span class="hs-special">(</span><span class="hs-identifier hs-type">Lens</span><span class="hs-operator hs-type">.</span><span class="hs-identifier hs-type">Labels</span><span class="hs-operator hs-type">.</span><span class="hs-identifier hs-type">Proxy</span><span class="hs-operator hs-type">#</span><span class="hs-special">)</span><span> </span><span class="hs-string">"maybe'featureLists"</span><span class="hs-special">)</span><span> </span><a name="line-207"></a><span> </span><a name="line-208"></a><span class="hs-identifier">maybe'features</span><span> </span><span class="hs-glyph">::</span><span> </span><a name="line-209"></a><span> </span><span class="hs-keyword">forall</span><span> </span><a name="local-6989586621679192222"><a href="#local-6989586621679192222"><span class="hs-identifier">f</span></a></a><span> </span><a name="local-6989586621679192223"><a href="#local-6989586621679192223"><span class="hs-identifier">s</span></a></a><span> </span><a name="local-6989586621679192224"><a href="#local-6989586621679192224"><span class="hs-identifier">t</span></a></a><span> </span><a name="local-6989586621679192225"><a href="#local-6989586621679192225"><span class="hs-identifier">a</span></a></a><span> </span><a name="local-6989586621679192226"><a href="#local-6989586621679192226"><span class="hs-identifier">b</span></a></a><span> </span><span class="hs-operator">.</span><span> </span><a name="line-210"></a><span> </span><span class="hs-special">(</span><span class="hs-identifier hs-type">Lens</span><span class="hs-operator hs-type">.</span><span class="hs-identifier hs-type">Labels</span><span class="hs-operator hs-type">.</span><span class="hs-identifier hs-type">HasLens</span><span> </span><span class="hs-string">"maybe'features"</span><span> </span><a href="#local-6989586621679192222"><span class="hs-identifier hs-type">f</span></a><span> </span><a href="#local-6989586621679192223"><span class="hs-identifier hs-type">s</span></a><span> </span><a href="#local-6989586621679192224"><span class="hs-identifier hs-type">t</span></a><span> </span><a href="#local-6989586621679192225"><span class="hs-identifier hs-type">a</span></a><span> </span><a href="#local-6989586621679192226"><span class="hs-identifier hs-type">b</span></a><span class="hs-special">)</span><span> </span><span class="hs-glyph">=></span><span> </span><a name="line-211"></a><span> </span><span class="hs-identifier hs-type">Lens</span><span class="hs-operator hs-type">.</span><span class="hs-identifier hs-type">Family2</span><span class="hs-operator hs-type">.</span><span class="hs-identifier hs-type">LensLike</span><span> </span><a href="#local-6989586621679192222"><span class="hs-identifier hs-type">f</span></a><span> </span><a href="#local-6989586621679192223"><span class="hs-identifier hs-type">s</span></a><span> </span><a href="#local-6989586621679192224"><span class="hs-identifier hs-type">t</span></a><span> </span><a href="#local-6989586621679192225"><span class="hs-identifier hs-type">a</span></a><span> </span><a href="#local-6989586621679192226"><span class="hs-identifier hs-type">b</span></a><span> </span><a name="line-212"></a><a name="maybe%27features"><a href="Proto.Tensorflow.Core.Example.Example.html#maybe%27features"><span class="hs-identifier">maybe'features</span></a></a><span> </span><a name="line-213"></a><span> </span><span class="hs-glyph">=</span><span> </span><span class="hs-identifier hs-var">Lens</span><span class="hs-operator hs-var">.</span><span class="hs-identifier hs-var">Labels</span><span class="hs-operator hs-var">.</span><span class="hs-identifier hs-var">lensOf</span><span> </span><a name="line-214"></a><span> </span><span class="hs-special">(</span><span class="hs-special">(</span><span class="hs-identifier hs-var">Lens</span><span class="hs-operator hs-var">.</span><span class="hs-identifier hs-var">Labels</span><span class="hs-operator hs-var">.</span><span class="hs-identifier hs-var">proxy</span><span class="hs-operator hs-var">#</span><span class="hs-special">)</span><span> </span><span class="hs-glyph">::</span><span> </span><span class="hs-special">(</span><span class="hs-identifier hs-type">Lens</span><span class="hs-operator hs-type">.</span><span class="hs-identifier hs-type">Labels</span><span class="hs-operator hs-type">.</span><span class="hs-identifier hs-type">Proxy</span><span class="hs-operator hs-type">#</span><span class="hs-special">)</span><span> </span><span class="hs-string">"maybe'features"</span><span class="hs-special">)</span></pre></body></html>