docstr: quaternion format (w, x, y, z)
docstr_tok: ["quaternion","format","(","w",",","x",",","y",",","z",")"]
code: def __init__(self, quat):
      """
      quaternion format (w, x, y, z)
      """
      self.quaternion = quat
  
imports: import numpy
  from geometry import transformations
label_desc: Use image node_id 1 to create a new Rotation object  with example: obj = Rotation(quat)