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<h1>
<small class="visible-xs">Elixir v1.7.2</small>
Dict
<a href="https://github.com/elixir-lang/elixir/blob/v1.7.2/lib/elixir/lib/dict.ex#L1" title="View Source" class="view-source" rel="help">
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</h1>
<div class="deprecated">
This module is deprecated. Use Map or Keyword modules instead.
</div>
<section id="moduledoc">
<p>Generic API for dictionaries.</p>
<p>If you need a general dictionary, use the <a href="Map.html"><code class="inline">Map</code></a> module.
If you need to manipulate keyword lists, use <a href="Keyword.html"><code class="inline">Keyword</code></a>.</p>
<p>To convert maps into keywords and vice-versa, use the
<code class="inline">new</code> function in the respective modules.</p>
</section>
<section id="summary" class="details-list">
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Summary
</h1>
<div class="summary-types summary">
<h2>
<a href="#types">Types</a>
</h2>
<div class="summary-row">
<div class="summary-signature">
<a href="#t:key/0">key()</a>
</div>
</div>
<div class="summary-row">
<div class="summary-signature">
<a href="#t:t/0">t()</a>
</div>
</div>
<div class="summary-row">
<div class="summary-signature">
<a href="#t:value/0">value()</a>
</div>
</div>
</div>
<div class="summary-functions summary">
<h2>
<a href="#functions">Functions</a>
</h2>
<div class="summary-row">
<div class="summary-signature">
<a href="#delete/2">delete(dict, key)</a>
<span class="deprecated" title="Use the Map module for working with maps or the Keyword module for working with keyword lists">deprecated</span>
</div>
</div>
<div class="summary-row">
<div class="summary-signature">
<a href="#drop/2">drop(dict, keys)</a>
<span class="deprecated" title="Use the Map module for working with maps or the Keyword module for working with keyword lists">deprecated</span>
</div>
</div>
<div class="summary-row">
<div class="summary-signature">
<a href="#empty/1">empty(dict)</a>
<span class="deprecated" title="Use the Map module for working with maps or the Keyword module for working with keyword lists">deprecated</span>
</div>
</div>
<div class="summary-row">
<div class="summary-signature">
<a href="#equal?/2">equal?(dict1, dict2)</a>
<span class="deprecated" title="Use the Map module for working with maps or the Keyword module for working with keyword lists">deprecated</span>
</div>
</div>
<div class="summary-row">
<div class="summary-signature">
<a href="#fetch!/2">fetch!(dict, key)</a>
<span class="deprecated" title="Use the Map module for working with maps or the Keyword module for working with keyword lists">deprecated</span>
</div>
</div>
<div class="summary-row">
<div class="summary-signature">
<a href="#fetch/2">fetch(dict, key)</a>
<span class="deprecated" title="Use the Map module for working with maps or the Keyword module for working with keyword lists">deprecated</span>
</div>
</div>
<div class="summary-row">
<div class="summary-signature">
<a href="#get/3">get(dict, key, default \\ nil)</a>
<span class="deprecated" title="Use the Map module for working with maps or the Keyword module for working with keyword lists">deprecated</span>
</div>
</div>
<div class="summary-row">
<div class="summary-signature">
<a href="#get_and_update/3">get_and_update(dict, key, fun)</a>
<span class="deprecated" title="Use the Map module for working with maps or the Keyword module for working with keyword lists">deprecated</span>
</div>
</div>
<div class="summary-row">
<div class="summary-signature">
<a href="#get_lazy/3">get_lazy(dict, key, fun)</a>
<span class="deprecated" title="Use the Map module for working with maps or the Keyword module for working with keyword lists">deprecated</span>
</div>
</div>
<div class="summary-row">
<div class="summary-signature">
<a href="#has_key?/2">has_key?(dict, key)</a>
<span class="deprecated" title="Use the Map module for working with maps or the Keyword module for working with keyword lists">deprecated</span>
</div>
</div>
<div class="summary-row">
<div class="summary-signature">
<a href="#keys/1">keys(dict)</a>
<span class="deprecated" title="Use the Map module for working with maps or the Keyword module for working with keyword lists">deprecated</span>
</div>
</div>
<div class="summary-row">
<div class="summary-signature">
<a href="#merge/2">merge(dict1, dict2)</a>
<span class="deprecated" title="Use the Map module for working with maps or the Keyword module for working with keyword lists">deprecated</span>
</div>
</div>
<div class="summary-row">
<div class="summary-signature">
<a href="#merge/3">merge(dict1, dict2, fun)</a>
<span class="deprecated" title="Use the Map module for working with maps or the Keyword module for working with keyword lists">deprecated</span>
</div>
</div>
<div class="summary-row">
<div class="summary-signature">
<a href="#pop/3">pop(dict, key, default \\ nil)</a>
<span class="deprecated" title="Use the Map module for working with maps or the Keyword module for working with keyword lists">deprecated</span>
</div>
</div>
<div class="summary-row">
<div class="summary-signature">
<a href="#pop_lazy/3">pop_lazy(dict, key, fun)</a>
<span class="deprecated" title="Use the Map module for working with maps or the Keyword module for working with keyword lists">deprecated</span>
</div>
</div>
<div class="summary-row">
<div class="summary-signature">
<a href="#put/3">put(dict, key, val)</a>
<span class="deprecated" title="Use the Map module for working with maps or the Keyword module for working with keyword lists">deprecated</span>
</div>
</div>
<div class="summary-row">
<div class="summary-signature">
<a href="#put_new/3">put_new(dict, key, val)</a>
<span class="deprecated" title="Use the Map module for working with maps or the Keyword module for working with keyword lists">deprecated</span>
</div>
</div>
<div class="summary-row">
<div class="summary-signature">
<a href="#put_new_lazy/3">put_new_lazy(dict, key, fun)</a>
<span class="deprecated" title="Use the Map module for working with maps or the Keyword module for working with keyword lists">deprecated</span>
</div>
</div>
<div class="summary-row">
<div class="summary-signature">
<a href="#size/1">size(dict)</a>
<span class="deprecated" title="Use the Map module for working with maps or the Keyword module for working with keyword lists">deprecated</span>
</div>
</div>
<div class="summary-row">
<div class="summary-signature">
<a href="#split/2">split(dict, keys)</a>
<span class="deprecated" title="Use the Map module for working with maps or the Keyword module for working with keyword lists">deprecated</span>
</div>
</div>
<div class="summary-row">
<div class="summary-signature">
<a href="#take/2">take(dict, keys)</a>
<span class="deprecated" title="Use the Map module for working with maps or the Keyword module for working with keyword lists">deprecated</span>
</div>
</div>
<div class="summary-row">
<div class="summary-signature">
<a href="#to_list/1">to_list(dict)</a>
<span class="deprecated" title="Use the Map module for working with maps or the Keyword module for working with keyword lists">deprecated</span>
</div>
</div>
<div class="summary-row">
<div class="summary-signature">
<a href="#update!/3">update!(dict, key, fun)</a>
<span class="deprecated" title="Use the Map module for working with maps or the Keyword module for working with keyword lists">deprecated</span>
</div>
</div>
<div class="summary-row">
<div class="summary-signature">
<a href="#update/4">update(dict, key, initial, fun)</a>
<span class="deprecated" title="Use the Map module for working with maps or the Keyword module for working with keyword lists">deprecated</span>
</div>
</div>
<div class="summary-row">
<div class="summary-signature">
<a href="#values/1">values(dict)</a>
<span class="deprecated" title="Use the Map module for working with maps or the Keyword module for working with keyword lists">deprecated</span>
</div>
</div>
</div>
</section>
<section id="types" class="details-list">
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Types
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<span class="signature">key()</span>
<a href="https://github.com/elixir-lang/elixir/blob/v1.7.2/lib/elixir/lib/dict.ex#L14" class="view-source" rel="help" title="View Source">
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<div class="specs">
<pre>key() :: <a href="typespecs.html#basic-types">any</a>()</pre>
</div>
</div>
<section class="docstring">
</section>
</div>
<div class="detail" id="t:t/0">
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<span class="signature">t()</span>
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<div class="specs">
<pre>t() :: <a href="typespecs.html#built-in-types">list</a>() | <a href="typespecs.html#basic-types">map</a>()</pre>
</div>
</div>
<section class="docstring">
</section>
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<span class="signature">value()</span>
<a href="https://github.com/elixir-lang/elixir/blob/v1.7.2/lib/elixir/lib/dict.ex#L15" class="view-source" rel="help" title="View Source">
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<div class="specs">
<pre>value() :: <a href="typespecs.html#basic-types">any</a>()</pre>
</div>
</div>
<section class="docstring">
</section>
</div>
</div>
</section>
<section id="functions" class="details-list">
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Functions
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<span class="signature">delete(dict, key)</span>
<a href="https://github.com/elixir-lang/elixir/blob/v1.7.2/lib/elixir/lib/dict.ex#L323" class="view-source" rel="help" title="View Source">
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<div class="specs">
<pre>delete(<a href="#t:t/0">t</a>(), <a href="#t:key/0">key</a>()) :: <a href="#t:t/0">t</a>()</pre>
</div>
</div>
<div class="deprecated">
This function is deprecated. Use the Map module for working with maps or the Keyword module for working with keyword lists.
</div>
<section class="docstring">
</section>
</div>
<div class="detail" id="drop/2">
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<span class="signature">drop(dict, keys)</span>
<a href="https://github.com/elixir-lang/elixir/blob/v1.7.2/lib/elixir/lib/dict.ex#L392" class="view-source" rel="help" title="View Source">
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<div class="specs">
<pre>drop(<a href="#t:t/0">t</a>(), [<a href="#t:key/0">key</a>()]) :: <a href="#t:t/0">t</a>()</pre>
</div>
</div>
<div class="deprecated">
This function is deprecated. Use the Map module for working with maps or the Keyword module for working with keyword lists.
</div>
<section class="docstring">
</section>
</div>
<div class="detail" id="empty/1">
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<span class="signature">empty(dict)</span>
<a href="https://github.com/elixir-lang/elixir/blob/v1.7.2/lib/elixir/lib/dict.ex#L404" class="view-source" rel="help" title="View Source">
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<div class="specs">
<pre>empty(<a href="#t:t/0">t</a>()) :: <a href="#t:t/0">t</a>()</pre>
</div>
</div>
<div class="deprecated">
This function is deprecated. Use the Map module for working with maps or the Keyword module for working with keyword lists.
</div>
<section class="docstring">
</section>
</div>
<div class="detail" id="equal?/2">
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<span class="signature">equal?(dict1, dict2)</span>
<a href="https://github.com/elixir-lang/elixir/blob/v1.7.2/lib/elixir/lib/dict.ex#L410" class="view-source" rel="help" title="View Source">
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<div class="specs">
<pre>equal?(<a href="#t:t/0">t</a>(), <a href="#t:t/0">t</a>()) :: <a href="typespecs.html#built-in-types">boolean</a>()</pre>
</div>
</div>
<div class="deprecated">
This function is deprecated. Use the Map module for working with maps or the Keyword module for working with keyword lists.
</div>
<section class="docstring">
</section>
</div>
<div class="detail" id="fetch!/2">
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<span class="signature">fetch!(dict, key)</span>
<a href="https://github.com/elixir-lang/elixir/blob/v1.7.2/lib/elixir/lib/dict.ex#L299" class="view-source" rel="help" title="View Source">
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<div class="specs">
<pre>fetch!(<a href="#t:t/0">t</a>(), <a href="#t:key/0">key</a>()) :: <a href="#t:value/0">value</a>() | <a href="typespecs.html#built-in-types">no_return</a>()</pre>
</div>
</div>
<div class="deprecated">
This function is deprecated. Use the Map module for working with maps or the Keyword module for working with keyword lists.
</div>
<section class="docstring">
</section>
</div>
<div class="detail" id="fetch/2">
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<span class="signature">fetch(dict, key)</span>
<a href="https://github.com/elixir-lang/elixir/blob/v1.7.2/lib/elixir/lib/dict.ex#L293" class="view-source" rel="help" title="View Source">
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<div class="specs">
<pre>fetch(<a href="#t:t/0">t</a>(), <a href="#t:key/0">key</a>()) :: <a href="#t:value/0">value</a>()</pre>
</div>
</div>
<div class="deprecated">
This function is deprecated. Use the Map module for working with maps or the Keyword module for working with keyword lists.
</div>
<section class="docstring">
</section>
</div>
<div class="detail" id="get/3">
<span id="get/2"></span>
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<span class="signature">get(dict, key, default \\ nil)</span>
<a href="https://github.com/elixir-lang/elixir/blob/v1.7.2/lib/elixir/lib/dict.ex#L275" class="view-source" rel="help" title="View Source">
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<div class="specs">
<pre>get(<a href="#t:t/0">t</a>(), <a href="#t:key/0">key</a>(), <a href="#t:value/0">value</a>()) :: <a href="#t:value/0">value</a>()</pre>
</div>
</div>
<div class="deprecated">
This function is deprecated. Use the Map module for working with maps or the Keyword module for working with keyword lists.
</div>
<section class="docstring">
</section>
</div>
<div class="detail" id="get_and_update/3">
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<span class="signature">get_and_update(dict, key, fun)</span>
<a href="https://github.com/elixir-lang/elixir/blob/v1.7.2/lib/elixir/lib/dict.ex#L287" class="view-source" rel="help" title="View Source">
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<div class="specs">
<pre>get_and_update(<a href="#t:t/0">t</a>(), <a href="#t:key/0">key</a>(), (<a href="#t:value/0">value</a>() -> {<a href="#t:value/0">value</a>(), <a href="#t:value/0">value</a>()})) ::
{<a href="#t:value/0">value</a>(), <a href="#t:t/0">t</a>()}</pre>
</div>
</div>
<div class="deprecated">
This function is deprecated. Use the Map module for working with maps or the Keyword module for working with keyword lists.
</div>
<section class="docstring">
</section>
</div>
<div class="detail" id="get_lazy/3">
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<span class="signature">get_lazy(dict, key, fun)</span>
<a href="https://github.com/elixir-lang/elixir/blob/v1.7.2/lib/elixir/lib/dict.ex#L281" class="view-source" rel="help" title="View Source">
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<div class="specs">
<pre>get_lazy(<a href="#t:t/0">t</a>(), <a href="#t:key/0">key</a>(), (() -> <a href="#t:value/0">value</a>())) :: <a href="#t:value/0">value</a>()</pre>
</div>
</div>
<div class="deprecated">
This function is deprecated. Use the Map module for working with maps or the Keyword module for working with keyword lists.
</div>
<section class="docstring">
</section>
</div>
<div class="detail" id="has_key?/2">
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<span class="signature">has_key?(dict, key)</span>
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<pre>has_key?(<a href="#t:t/0">t</a>(), <a href="#t:key/0">key</a>()) :: <a href="typespecs.html#built-in-types">boolean</a>()</pre>
</div>
</div>
<div class="deprecated">
This function is deprecated. Use the Map module for working with maps or the Keyword module for working with keyword lists.
</div>
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</section>
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<div class="detail" id="keys/1">
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<span class="signature">keys(dict)</span>
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<pre>keys(<a href="#t:t/0">t</a>()) :: [<a href="#t:key/0">key</a>()]</pre>
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</div>
<div class="deprecated">
This function is deprecated. Use the Map module for working with maps or the Keyword module for working with keyword lists.
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<span class="signature">merge(dict1, dict2)</span>
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<pre>merge(<a href="#t:t/0">t</a>(), <a href="#t:t/0">t</a>()) :: <a href="#t:t/0">t</a>()</pre>
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</div>
<div class="deprecated">
This function is deprecated. Use the Map module for working with maps or the Keyword module for working with keyword lists.
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<span class="signature">merge(dict1, dict2, fun)</span>
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<pre>merge(<a href="#t:t/0">t</a>(), <a href="#t:t/0">t</a>(), (<a href="#t:key/0">key</a>(), <a href="#t:value/0">value</a>(), <a href="#t:value/0">value</a>() -> <a href="#t:value/0">value</a>())) :: <a href="#t:t/0">t</a>()</pre>
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</div>
<div class="deprecated">
This function is deprecated. Use the Map module for working with maps or the Keyword module for working with keyword lists.
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</section>
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<span class="signature">pop(dict, key, default \\ nil)</span>
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<pre>pop(<a href="#t:t/0">t</a>(), <a href="#t:key/0">key</a>(), <a href="#t:value/0">value</a>()) :: {<a href="#t:value/0">value</a>(), <a href="#t:t/0">t</a>()}</pre>
</div>
</div>
<div class="deprecated">
This function is deprecated. Use the Map module for working with maps or the Keyword module for working with keyword lists.
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<span class="signature">pop_lazy(dict, key, fun)</span>
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<pre>pop_lazy(<a href="#t:t/0">t</a>(), <a href="#t:key/0">key</a>(), (() -> <a href="#t:value/0">value</a>())) :: {<a href="#t:value/0">value</a>(), <a href="#t:t/0">t</a>()}</pre>
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</div>
<div class="deprecated">
This function is deprecated. Use the Map module for working with maps or the Keyword module for working with keyword lists.
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<span class="signature">put(dict, key, val)</span>
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<pre>put(<a href="#t:t/0">t</a>(), <a href="#t:key/0">key</a>(), <a href="#t:value/0">value</a>()) :: <a href="#t:t/0">t</a>()</pre>
</div>
</div>
<div class="deprecated">
This function is deprecated. Use the Map module for working with maps or the Keyword module for working with keyword lists.
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<span class="signature">put_new(dict, key, val)</span>
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<pre>put_new(<a href="#t:t/0">t</a>(), <a href="#t:key/0">key</a>(), <a href="#t:value/0">value</a>()) :: <a href="#t:t/0">t</a>()</pre>
</div>
</div>
<div class="deprecated">
This function is deprecated. Use the Map module for working with maps or the Keyword module for working with keyword lists.
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<span class="signature">put_new_lazy(dict, key, fun)</span>
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<pre>put_new_lazy(<a href="#t:t/0">t</a>(), <a href="#t:key/0">key</a>(), (() -> <a href="#t:value/0">value</a>())) :: <a href="#t:t/0">t</a>()</pre>
</div>
</div>
<div class="deprecated">
This function is deprecated. Use the Map module for working with maps or the Keyword module for working with keyword lists.
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<span class="signature">size(dict)</span>
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<pre>size(<a href="#t:t/0">t</a>()) :: <a href="typespecs.html#basic-types">non_neg_integer</a>()</pre>
</div>
</div>
<div class="deprecated">
This function is deprecated. Use the Map module for working with maps or the Keyword module for working with keyword lists.
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<span class="signature">split(dict, keys)</span>
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<pre>split(<a href="#t:t/0">t</a>(), [<a href="#t:key/0">key</a>()]) :: {<a href="#t:t/0">t</a>(), <a href="#t:t/0">t</a>()}</pre>
</div>
</div>
<div class="deprecated">
This function is deprecated. Use the Map module for working with maps or the Keyword module for working with keyword lists.
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<span class="signature">take(dict, keys)</span>
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<pre>take(<a href="#t:t/0">t</a>(), [<a href="#t:key/0">key</a>()]) :: <a href="#t:t/0">t</a>()</pre>
</div>
</div>
<div class="deprecated">
This function is deprecated. Use the Map module for working with maps or the Keyword module for working with keyword lists.
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<span class="signature">to_list(dict)</span>
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<pre>to_list(<a href="#t:t/0">t</a>()) :: <a href="typespecs.html#built-in-types">list</a>()</pre>
</div>
</div>
<div class="deprecated">
This function is deprecated. Use the Map module for working with maps or the Keyword module for working with keyword lists.
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<span class="signature">update!(dict, key, fun)</span>
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<pre>update!(<a href="#t:t/0">t</a>(), <a href="#t:key/0">key</a>(), (<a href="#t:value/0">value</a>() -> <a href="#t:value/0">value</a>())) :: <a href="#t:t/0">t</a>()</pre>
</div>
</div>
<div class="deprecated">
This function is deprecated. Use the Map module for working with maps or the Keyword module for working with keyword lists.
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</section>
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<span class="signature">update(dict, key, initial, fun)</span>
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<pre>update(<a href="#t:t/0">t</a>(), <a href="#t:key/0">key</a>(), <a href="#t:value/0">value</a>(), (<a href="#t:value/0">value</a>() -> <a href="#t:value/0">value</a>())) :: <a href="#t:t/0">t</a>()</pre>
</div>
</div>
<div class="deprecated">
This function is deprecated. Use the Map module for working with maps or the Keyword module for working with keyword lists.
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</section>
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<span class="signature">values(dict)</span>
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<pre>values(<a href="#t:t/0">t</a>()) :: [<a href="#t:value/0">value</a>()]</pre>
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