code: def _decrypt_icru_files(numbers):
          
          import json
          icru_file = resource_string(__name__, os.path.join('data', 'SH12A_ICRU_table.json'))
          ref_dict = json.loads(icru_file.decode('ascii'))
          try:
              return [ref_dict[e] for e in numbers]
          except KeyError as er:
              logger.error("There is no ICRU file for id: {0}".format(er))
              raise
docs: Find matching file names for given ICRU numbers