#34;&#34;&#34;
    Action for updating the features of an annotation.
    &#34;&#34;&#34;

    def __init__(
            self,
            name=None,
            updateann=None,
            fromann=None,
            features=None,
            replace=False,  # replace existing features rather than updating
            resultidx=0,
            matchidx=0,
            silent_fail=False,
            deepcopy=False
    ):
        &#34;&#34;&#34;
        Create an UpdateAnnFeatures action. The features to use fo