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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 connect_params_async(self):
 """Connection parameters for `aiopg.Connection` """

        kwargs = self.connect_params.copy()
        kwargs.update({
            'minsize': self.min_connections,
            'maxsize': self.max_connections,
            'enable_json': self._enable_json,
            'enable_hstore': self._enable_hstore,
        })
        return kwargs