code: def nlerp_quat(from_quat, to_quat, percent):
      
  
      result = lerp_quat(from_quat, to_quat, percent)
      result.normalize()
      return result
docs: Return normalized linear interpolation of two quaternions.
  
      Less computationally expensive than slerp (which not implemented in this
      lib yet), but does not maintain a constant velocity like slerp.