code: def test_parametrize_dtype_specifier(spec):
      assert (
          numpy.dtype(spec).type.__name__ in chainerx.testing.all_dtypes
      )
  
imports: import numpy
  import chainerx
  import chainerx.testing
label_desc: Use image node_id 2 for calling a global function with example usage: test_parametrize_dtype_specifier(spec) without return types