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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 _exec(self, query, **kwargs):
 """Execute a query against the cloud backend"""

        variables = {'entity': self.username,
                     'project': self.project, 'name': self.name}
        variables.update(kwargs)
        return self.client.execute(query, variable_values=variables)