ps the current save stack, if there is anything to pop.
Otherwise, does nothing. <a href="dart-ui/Canvas/restore.html">[...]</a>
          
</dd>
        <dt id="rotate" class="callable">
          <span class="name"><a href="dart-ui/Canvas/rotate.html">rotate</a></span><span class="signature">(<wbr><span class="parameter" id="rotate-param-radians"><span class="type-annotation"><a href="dart-core/double-class.html">double</a></span> <span class="parameter-name">radians</span></span>)
            <span class