@utils.check_messages("<STR_LIT>")<EOL><INDENT>def visit_assert(self, node):<DEDENT>
if (<EOL>node.fail is None<EOL>and isinstance(node.test, astroid.Tuple)<EOL>and len(node.test.elts) == <NUM_LIT:2><EOL>):<EOL><INDENT>self.add_message("<STR_LIT>", node=node)<EOL><DEDENT>
check the use of an assert statement on a tuple.