code: def generate_preset_test_rotation_matrices_2d():
      """Generates pre-set test 2d rotation matrices."""
      angles = generate_preset_test_euler_angles(dimensions=1)
      preset_rotation_matrix = rotation_matrix_2d.from_euler(angles)
      return preset_rotation_matrix
  
imports: from __future__ import absolute_import
  from __future__ import division
  from __future__ import print_function
  import itertools
  import math
  import numpy
  from scipy import stats
  from six.moves import range
  import tensorflow.compat.v2
  from tensorflow_graphics.geometry.transformation import axis_angle
  from tensorflow_graphics.geometry.transformation import quaternion
  from tensorflow_graphics.geometry.transformation import rotation_matrix_2d
  from tensorflow_graphics.geometry.transformation import rotation_matrix_3d
label_desc: Use image node_id 4 for calling a global function with example usage: generate_preset_test_rotation_matrices_2d() and returns: preset_rotation_matrix