code: def _wavefunction(self, quil_program, random_seed) -> Wavefunction:
          
  
          payload = wavefunction_payload(quil_program, random_seed)
          response = post_json(self.session, self.sync_endpoint + "/qvm", payload)
          return Wavefunction.from_bit_packed_string(response.content)
docs: Run a Forest ``wavefunction`` job.
  
          Users should use :py:func:`WavefunctionSimulator.wavefunction` instead of calling
          this directly.