code: def _permutate_shapes(shapes_list):
      # Permutates input shapes
      permutated_shapes_list = []
      for in_shape1, in_shape2 in shapes_list:
          permutated_shapes_list.append((in_shape1, in_shape2))
          permutated_shapes_list.append((in_shape2, in_shape1))
      return list(set(permutated_shapes_list))
  
imports: import unittest
  import numpy
  import chainerx
  from chainerx_tests import array_utils
  from chainerx_tests import dtype_utils
label_desc: Use image node_id 2 for calling a global function with example usage: _permutate_shapes(shapes_list) and returns: list