Clone object and apply new group and/or label.

        Applies relabeling to children up to the supplied depth.

        Args:
            label (str, optional): New label to apply to returned object
            group (str, optional): New group to apply to returned object
            depth (int, optional): Depth to which relabel will be applied
                If applied to container allows applying relabeling to
                contained objects up to the specified depth

        Returns:
            Returns relabelled object

def relabel(self, label=None, group=None, depth=1):
        """Clone object and apply new group and/or label.

        Applies relabeling to children up to the supplied depth.

        Args:
            label (str, optional): New label to apply to returned object
            group (str, optional): New group to apply to returned object
            depth (int, optional): Depth to which relabel will be applied
                If applied to container allows applying relabeling to
                contained objects up to the specified depth

        Returns:
            Returns relabelled object
        """
        relabelled = super(DynamicMap, self).relabel(label, group, depth)
        if depth > 0:
            from ..util import Dynamic
            def dynamic_relabel(obj, **dynkwargs):
                return obj.relabel(group=group, label=label, depth=depth-1)
            dmap = Dynamic(self, streams=self.streams, operation=dynamic_relabel)
            dmap.data = relabelled.data
            with util.disable_constant(dmap):
                dmap.group = relabelled.group
                dmap.label = relabelled.label
            return dmap
        return relabelled