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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 get_worksheet(self):
 """ Returns this table worksheet """

        url = self.build_url('')
        q = self.q().select('name').expand('worksheet')
        response = self.session.get(url, params=q.as_params())
        if not response:
            return None
        data = response.json()

        ws = data.get('worksheet')
        if ws is None:
            return None
        return WorkSheet(parent=self.parent, **{self._cloud_data_key: ws})