code: def helper_param_static_shapes(self, sample_shape, expected):
      param_shapes = (
          two_piece_student_t.TwoPieceStudentT.param_static_shapes(
              sample_shape
          )
      )
      df_shape = param_shapes["df"]
      loc_shape = param_shapes["loc"]
      scale_shape = param_shapes["scale"]
      skewness_shape = param_shapes["skewness"]
  
      self.assertEqual(expected, df_shape)
      self.assertEqual(expected, loc_shape)
      self.assertEqual(expected, scale_shape)
      self.assertEqual(expected, skewness_shape)
  
imports: from absl.testing import parameterized
  import numpy
  import tensorflow.compat.v2
  from tensorflow_probability.python.distributions import two_piece_student_t
  from tensorflow_probability.python.internal import test_util
  from tensorflow_probability.python.math import gradient
label_desc: Use image node_id 4 for calling the _TwoPieceStudentTTest obj's underlying member method code with example usage: obj.helper_param_static_shapes(sample_shape, expected) without return types