def METHOD_NAME(vector, NFFT, dtype):
  # Split the real and imaginary parts
  vector_re = np.real(vector)
  vector_im = np.imag(vector)
  # Serialize the vectors
  serial_vec = np.empty(2 * NFFT, dtype=dtype)
  serial_vec[0::2] = vector_re
  serial_vec[1::2] = vector_im
  return serial_vec