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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_return(self, node):
 """return an astroid.Return node as string"""

        if node.is_tuple_return() and len(node.value.elts) > 1:
            elts = [child.accept(self) for child in node.value.elts]
            return "return %s" % ", ".join(elts)

        if node.value:
            return "return %s" % node.value.accept(self)

        return "return"