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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 set_attributes(self, attr_obj=None, ns_uri=None, **attr_dict):
 """ Add or update this element's attributes, where attributes can be specified in a number of ways. :param attr_obj: a dictionary or list of attribute name/value pairs. :type attr_obj: dict, list, tuple, or None :param ns_uri: a URI defining a namespace for the new attributes. :type ns_uri: string or None :param dict attr_dict: attribute name and values specified as keyword arguments. """

        self._set_element_attributes(self.impl_node,
            attr_obj=attr_obj, ns_uri=ns_uri, **attr_dict)