code: def test_dtypes(dtype):
      # smoke tests on auto dtype construction
  
      np.dtype(dtype.type).kind == "f"
      assert dtype.name is not None
  
file_path: pandas/pandas/tests/arrays/floating/test_repr.py
imports: import numpy
  import pytest
  import pandas
  from pandas.core.arrays.floating import Float32Dtype, Float64Dtype
label_desc: Use image node_id 1 for calling a global function with example usage: test_dtypes(dtype) without return types