code: def test_poly_basic(self, *, dim_var_type: str):
      x = np.arange(6, dtype=np.float32).reshape((2, 3))
  
      def f(x):  # x: f32[2, b]
          # (sin(x), x.shape[1])
          module, version = serialize(
              f"""
  module @jit_f.0 attributes {{jax.uses_shape_polymorphism = true}} {{
    func.func public @main(%arg1: tensor<2x?xf32>) -> (tensor<2x?xf32>, tensor<{dim_var_type}>) {{
      %arg0_new_i32 = "stablehlo.get_dimension_size"(%arg1) {{dimension = 1 : i64}} : (tensor<2x?xf32>) -> tensor<i32>
      %arg0_new = stablehlo.convert %arg0_new_i32 : (tensor<i32>) -> tensor<{dim_var_type}>
      %0, %1 = call @dyn_main(%arg0_new, %arg1) : (tensor<{dim_var_type}>, tensor<2x?xf32>) -> (tensor<2x?xf32>, tensor<{dim_var_type}>)
      return %0, %1 : tensor<2x?xf32>, tensor<{dim_var_type}>
    }}
    func.func private @dyn_main(%arg0: tensor<{dim_var_type}> {{jax.global_constant = "b"}}, %arg1: tensor<2x?xf32>) -> (tensor<2x?xf32>, tensor<{dim_var_type}>) {{
      %0 = stablehlo.sine %arg1 : tensor<2x?xf32>
      return %0, %arg0 : tensor<2x?xf32>, tensor<{dim_var_type}>
    }}
  }}
  """
          )
          return xla.call_module(
              [x],
              module=module,
              version=version,
              Tout=[x.dtype, np.int32],
              Sout=[(None, 3), ()],
              platforms=[self.testing_platform()],
          )
  
      self._assertOpOutputMatchesExpected(
          f, (x,), (np.sin(x), x.shape[1])
      )
  
imports: import os
  import re
  from typing import Optional, Sequence
  import unittest
  from absl.testing import parameterized
  import numpy
  from tensorflow.compiler.mlir.stablehlo import stablehlo
  from tensorflow.compiler.tests import xla_test
  from tensorflow.compiler.tf2xla.ops import gen_xla_ops
  from tensorflow.compiler.tf2xla.python import xla
  from tensorflow.core.protobuf import config_pb2
  from tensorflow.python.eager import def_function
  from tensorflow.python.framework import dtypes
  from tensorflow.python.framework import errors
  from tensorflow.python.framework import function
  from tensorflow.python.framework import ops
  from tensorflow.python.platform import googletest
  from tensorflow.python.platform import test
label_desc: Use image node_id 9 for calling the XlaCallModuleOpTest obj's underlying member method code with example usage: obj.test_poly_basic() and returns: xla