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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 assign(self, login):
 """Assigns user ``login`` to this issue. This is a short cut for ``issue.edit``. :param str login: username of the person to assign this issue to :returns: bool """

        if not login:
            return False
        number = self.milestone.number if self.milestone else None
        labels = [str(l) for l in self.labels]
        return self.edit(self.title, self.body, login, self.state, number,
                         labels)