code: def test_astype_type_c_contiguous_no_copy(self, dtype, order):
      a = testing.shaped_arange((2, 3, 4), cupy, dtype)
      b = a.astype(dtype, order=order, copy=False)
      assert b is a
  
imports: import numpy
  import pytest
  import cupy
  from cupy import testing
  from cupy import _util
label_desc: Use image node_id 4 for calling the TestArrayAsType obj's underlying member method code with example usage: obj.test_astype_type_c_contiguous_no_copy(dtype, order) without return types