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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_lambda(self, node):
 """return an astroid.Lambda node as string"""

        args = node.args.accept(self)
        body = node.body.accept(self)
        if args:
            return "lambda %s: %s" % (args, body)

        return "lambda: %s" % body