code: def from_bit_packed_string(coef_string):
          
          num_octets = len(coef_string)
  
          # Parse the wavefunction
          wf = np.zeros(num_octets // OCTETS_PER_COMPLEX_DOUBLE, dtype=np.cfloat)
          for i, p in enumerate(range(0, num_octets, OCTETS_PER_COMPLEX_DOUBLE)):
              re_be = coef_string[p: p + OCTETS_PER_DOUBLE_FLOAT]
              im_be = coef_string[p + OCTETS_PER_DOUBLE_FLOAT: p + OCTETS_PER_COMPLEX_DOUBLE]
              re = struct.unpack('>d', re_be)[0]
              im = struct.unpack('>d', im_be)[0]
              wf[i] = complex(re, im)
  
          return Wavefunction(wf)
docs: From a bit packed string, unpacks to get the wavefunction
          :param bytes coef_string:
          :return: