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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def __strip_tags(self, node: yaml.Node) -> None: """Strips tags from mappings in the tree headed by node. This keeps yaml from constructing any objects in this tree. Args: node: Head of the tree to strip """

        if isinstance(node, yaml.SequenceNode):
            for subnode in node.value:
                self.__strip_tags(subnode)
        elif isinstance(node, yaml.MappingNode):
            node.tag = 'tag:yaml.org,2002:map'
            for key_node, value_node in node.value:
                self.__strip_tags(key_node)
                self.__strip_tags(value_node)