ass="token function">predict</span></a><span class="token punctuation">(</span><span class="parameters "><span class="parameter ">input<span class="token operator">: </span><a href="../-dictionary/index.html">Dictionary</a></span></span><span class="token punctuation">)</span><span class="token operator">: </span><a href="../-dictionary/index.html">Dictionary</a><span class="token operator">?</span></div><div class="brief "><p class="paragraph">The prediction callback called when invoking the Function.predi