int</em></a>) – Order of Wasserstein distance. 
Supported values: 1 (Earth Mover’s Distance) or 2 (Quadratic Wasserstein).
Defaults to 2.</p></li>
</ul>
</dd>
<dt class="field-even">Raises<span class="colon">:</span></dt>
<dd class="field-even"><p><a class="reference external" href="https://docs.python.org/3/library/exceptions.html#ValueError" title="(in Python v3.13)"><strong>ValueError</strong></a> – <ul class="simple">
<li><p>If input_dim &lt; 1</p></li>
<li><p>If alpha ∉ (0, 1]</p></li>
<li><p>I