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<section id="mlx-utils-tree-flatten">
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<h1>mlx.utils.tree_flatten<a class="headerlink" href="#mlx-utils-tree-flatten" title="Permalink to this heading"></a></h1>
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<dl class="py function">
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<dt class="sig sig-object py" id="mlx.utils.tree_flatten">
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<span class="sig-prename descclassname"><span class="pre">mlx.utils.</span></span><span class="sig-name descname"><span class="pre">tree_flatten</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">tree</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">prefix</span></span><span class="o"><span class="pre">=</span></span><span class="default_value"><span class="pre">''</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">is_leaf</span></span><span class="o"><span class="pre">=</span></span><span class="default_value"><span class="pre">None</span></span></em><span class="sig-paren">)</span><a class="headerlink" href="#mlx.utils.tree_flatten" title="Permalink to this definition"></a></dt>
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<dd><p>Flattens a python tree to a list of key, value tuples.</p>
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<p>The keys are using the dot notation to define trees of arbitrary depth and
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complexity.</p>
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<div class="highlight-python notranslate"><div class="highlight"><pre><span></span><span class="kn">from</span> <span class="nn">mlx.utils</span> <span class="kn">import</span> <span class="n">tree_flatten</span>
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<span class="nb">print</span><span class="p">(</span><span class="n">tree_flatten</span><span class="p">([[[</span><span class="mi">0</span><span class="p">]]]))</span>
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<span class="c1"># [("0.0.0", 0)]</span>
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<span class="nb">print</span><span class="p">(</span><span class="n">tree_flatten</span><span class="p">([[[</span><span class="mi">0</span><span class="p">]]],</span> <span class="s2">".hello"</span><span class="p">))</span>
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<span class="c1"># [("hello.0.0.0", 0)]</span>
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</pre></div>
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</div>
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<div class="admonition note">
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<p class="admonition-title">Note</p>
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<p>Dictionaries should have keys that are valid python identifiers.</p>
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</div>
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<dl class="field-list simple">
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<dt class="field-odd">Parameters<span class="colon">:</span></dt>
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<dd class="field-odd"><ul class="simple">
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<li><p><strong>tree</strong> (<em>Any</em>) – The python tree to be flattened.</p></li>
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<li><p><strong>prefix</strong> (<a class="reference external" href="https://docs.python.org/3/library/stdtypes.html#str" title="(in Python v3.12)"><em>str</em></a>) – A prefix to use for the keys. The first character is
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always discarded.</p></li>
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<li><p><strong>is_leaf</strong> (<em>Callable</em>) – An optional callable that returns True if the
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passed object is considered a leaf or False otherwise.</p></li>
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</ul>
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</dd>
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<dt class="field-even">Returns<span class="colon">:</span></dt>
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<dd class="field-even"><p>The flat representation of the python tree.</p>
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</dd>
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<dt class="field-odd">Return type<span class="colon">:</span></dt>
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<dd class="field-odd"><p><em>List</em>[<em>Tuple</em>[<a class="reference external" href="https://docs.python.org/3/library/stdtypes.html#str" title="(in Python v3.12)"><em>str</em></a>, <em>Any</em>]]</p>
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