code: def simple_dtype_fmt():
      ld = np.dtype("longdouble")
      simple_ld_off = 12 + 4 * (ld.alignment > 4)
      return dt_fmt().format(
          ld.itemsize, simple_ld_off, simple_ld_off + ld.itemsize
      )
  
imports: import re
  import pytest
  import env
  from pybind11_tests import numpy_dtypes
label_desc: Use image node_id 4 for calling a global function with example usage: simple_dtype_fmt() and returns: dt_fmt