'Note: Only for use with classes that have a c_tag and c_namespace class
member. It is in SamlBase so that it can be inherited but it should
not be called on instances of SamlBase.
:param node: The node to which this instance should be a child'

def become_child_element_of(self, node):

    new_child = self._to_element_tree()
    node.append(new_child)
