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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 label(self, name):
 """Get the label specified by ``name`` :param str name: (required), name of the label :returns: :class:`Label <github3.issues.label.Label>` if successful, else None """

        json = None
        if name:
            url = self._build_url('labels', name, base_url=self._api)
            json = self._json(self._get(url), 200)
        return Label(json, self) if json else None