otation"><a href="../dart-ui/PlaceholderAlignment-class.html">PlaceholderAlignment</a></span> <span class="parameter-name">alignment</span>, </span><wbr><span class="parameter" id="addPlaceholder-param-scale">{<span class="type-annotation"><a href="../dart-core/double-class.html">double</a></span> <span class="parameter-name">scale</span>: <span class="default-value">1.0</span>, </span><wbr><span class="parameter" id="addPlaceholder-param-baselineOffset"><span class="type-annotation"><a href="../dart-core/d