code: def test_exr(h, f):
      if h.startswith(b"\x76\x2f\x31\x01"):
          return "exr"
  
file_path: catboost/contrib/tools/python3/src/Lib/imghdr.py
imports: from os import PathLike
  import warnings
label_desc: Use image node_id 14 for calling a global function with example usage: test_exr(h, f) and returns: str