<li><strong>param_attr</strong> (<aclass="reference internal"href="attrs.html#paddle.trainer_config_helpers.attrs.ParameterAttribute"title="paddle.trainer_config_helpers.attrs.ParameterAttribute"><em>ParameterAttribute</em></a>) – Parameter config, None if use default.</li>
<li><strong>scale</strong> (<em>float</em>) – config scalar, default value is one.</li>
</ul>
</td>
</tr>
<trclass="field-even field"><thclass="field-name">Returns:</th><tdclass="field-body"><pclass="first">A DotMulProjection or DotMulOperator Object.</p>