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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 _run_and_measure(self, quil_program, qubits, trials, random_seed) -> np.ndarray: """ Run a Forest ``run_and_measure`` job. Users should use :py:func:`WavefunctionSimulator.run_and_measure` instead of calling this directly. """

        payload = run_and_measure_payload(quil_program, qubits, trials, random_seed)
        response = post_json(self.session, self.sync_endpoint + "/qvm", payload)
        return np.asarray(response.json())