code: def tetrahedral(cls):
      g1 = np.eye(4)
      c = 0.5
      g2 = np.array(
          [
              [c, -c, -c, +c],
              [c, -c, +c, +c],
              [c, +c, -c, +c],
              [c, +c, +c, +c],
              [c, -c, -c, -c],
              [c, -c, +c, -c],
              [c, +c, -c, -c],
              [c, +c, +c, -c],
          ]
      )
      return cls.from_quat(np.concatenate((g1, g2)))
  
file_path: scipy/scipy/spatial/transform/_rotation_groups.py
imports: import numpy
  from scipy.constants import golden
label_desc: Use image node_id 3 for calling a global function with example usage: tetrahedral(cls) and returns: cls