code: def _get_random_voxel_grid(voxel_size):
      return np.random.uniform(size=voxel_size)
  
imports: from __future__ import absolute_import
  from __future__ import division
  from __future__ import print_function
  from absl.testing import parameterized
  import numpy
  from six.moves import range
  import tensorflow
  from tensorflow_graphics.geometry.representation import grid
  from tensorflow_graphics.geometry.transformation import rotation_matrix_3d
  from tensorflow_graphics.math.interpolation import trilinear
  from tensorflow_graphics.util import test_case
label_desc: Use image node_id 4 for calling a global function with example usage: _get_random_voxel_grid(voxel_size) and returns: np