span class="p">,</span> <span class="n">Sized</span><span class="p">,</span> <span class="n">Collection</span><span class="p">,</span> <span class="n">Callable</span><span class="p">,</span> <span class="n">Tuple</span><span class="p">,</span> <span class="n">Any</span><span class="p">,</span> <span class="n">Dict</span>
<span class="kn">from</span> <span class="nn">typing</span> <span class="kn">import</span> <span class="n">Union</span><span class="p">,</span> <span class="n">Optional</span><span class="p