code: def find_data_files(package, pattern):
      
  
      return glob.glob(os.path.join(package, pattern), recursive=True)
docs: Include files matching ``pattern`` inside ``package``.
  
      Parameters
      ----------
      package : str
          The package inside which to look for data files
      pattern : str
          Pattern (glob-style) to match for the data files (e.g. ``*.dat``).
          This supports the``**``recursive syntax. For example, ``**/*.fits``
          matches all files ending with ``.fits`` recursively. Only one
          instance of ``**`` can be included in the pattern.