code: def setup_hdf5_file(tmp_path):
      """Create temp hdf5 files."""
      fn = tmp_path / "epic_1b_20150613120251_03.h5"
      make_fake_hdf_epic(fn)
      return fn
  
file_path: satpy/satpy/tests/reader_tests/test_epic_l1b_h5.py
imports: import os
  import tempfile
  import h5py
  import numpy
  import pytest
  from satpy.readers.epic_l1b_h5 import CALIB_COEFS
label_desc: Use image node_id 1 for calling a global function with example usage: setup_hdf5_file(tmp_path) and returns: fn