code: def dt_fmt():
      return (
          "{{'names':['bool_','uint_','float_','ldbl_'], 'formats':['?','<u4','<f4','<f{}'],"
          " 'offsets':[0,4,8,{}], 'itemsize':{}}}"
      )
  
file_path: turicreate/src/external/coremltools_wrap/coremltools/deps/pybind11/tests/test_numpy_dtypes.py
imports: import re
  import pytest
label_desc: Use image node_id 3 for calling a global function with example usage: dt_fmt() and returns: str