Return tuple representation of `node`s elements.

def visit_Tuple(self, node: AST, dfltChaining: bool = True) -> str:
        """Return tuple representation of `node`s elements."""
        elems = (self.visit(elt) for elt in node.elts)
        return f"({', '.join(elems)}{')' if len(node.elts) != 1 else ',)'}"