code: def test_astype(self):
      for pser, psser in self.intergral_extension_pser_psser_pairs:
          for dtype in self.extension_dtypes:
              if dtype in self.string_extension_dtype:
                  self.check_extension(
                      pser.astype(dtype), psser.astype(dtype)
                  )
              else:
                  self.check_extension(
                      pser.astype(dtype), psser.astype(dtype)
                  )
      for pser, psser in self.intergral_extension_pser_psser_pairs:
          self.assert_eq(pser.astype(float), psser.astype(float))
          self.assert_eq(
              pser.astype(np.float32), psser.astype(np.float32)
          )
          with ps.option_context("compute.eager_check", True):
              self.assertRaisesRegex(
                  ValueError,
                  "Cannot convert integrals with missing values to bool",
                  lambda: psser.astype(bool),
              )
              self.assertRaisesRegex(
                  ValueError,
                  "Cannot convert integrals with missing values to integer",
                  lambda: psser.astype(int),
              )
              self.assertRaisesRegex(
                  ValueError,
                  "Cannot convert integrals with missing values to integer",
                  lambda: psser.astype(np.int32),
              )
          with ps.option_context("compute.eager_check", False):
              psser.astype(bool)
              psser.astype(int)
              psser.astype(np.int32)
  
imports: import unittest
  import pandas
  import numpy
  from pyspark import pandas
  from pyspark.pandas.config import option_context
  from pyspark.testing.pandasutils import PandasOnSparkTestCase
  from pyspark.pandas.tests.data_type_ops.testing_utils import OpsTestBase
  from pyspark.pandas.typedef.typehints import extension_dtypes_available, extension_float_dtypes_available, extension_object_dtypes_available
  from pyspark.sql.types import DecimalType, IntegralType
label_desc: Use image node_id 6 for calling the IntegralExtensionOpsTest obj's underlying member method code with example usage: obj.test_astype() without return types