def get_edge_schema_element_or_raise(self, edge_classname):
        """Return the schema element with the given name, asserting that it's of edge type."""
        schema_element = self.get_element_by_class_name_or_raise(edge_classname)

        if not schema_element.is_edge:
            raise InvalidClassError(u'Non-edge class provided: {}'.format(edge_classname))

        return schema_element
def get_edge_schema_element_or_raise ( self , edge_classname ) : schema_element = self . get_element_by_class_name_or_raise ( edge_classname ) if not schema_element . is_edge : raise InvalidClassError ( u'Non-edge class provided: {}' . format ( edge_classname ) ) return schema_element
Return the schema element with the given name, asserting that it's of edge type.