code: def quaternion_multiply(quaternion1, quaternion0):
      """Return multiplication of two quaternions.
  
      >>> q = quaternion_multiply([4, 1, -2, 3], [8, -5, 6, 7])
      >>> numpy.allclose(q, [28, -44, -14, 48])
      True
  
      """
      w0, x0, y0, z0 = quaternion0
      w1, x1, y1, z1 = quaternion1
      return numpy.array(
          [
              -x1 * x0 - y1 * y0 - z1 * z0 + w1 * w0,
              x1 * w0 + y1 * z0 - z1 * y0 + w1 * x0,
              -x1 * z0 + y1 * w0 + z1 * x0 + w1 * y0,
              x1 * y0 - y1 * x0 + z1 * w0 + w1 * z0,
          ],
          dtype=numpy.float64,
      )
  
imports: import math
  import numpy
label_desc: Use image node_id 27 for calling a global function with example usage: quaternion_multiply(quaternion1, quaternion0) and returns: numpy