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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 visit_tuple(self, node, parent):
 """visit a Tuple node by returning a fresh instance of it"""

        context = self._get_context(node)
        newnode = nodes.Tuple(
            ctx=context, lineno=node.lineno, col_offset=node.col_offset, parent=parent
        )
        newnode.postinit([self.visit(child, newnode) for child in node.elts])
        return newnode