code: def __zone_sort_key(zone):
      """Sort by absolute UTC offset at reference date,
      positive first, with ties broken by name.
      """
      assert zone is not None
      offset = zone.utcoffset(dt.datetime(2000, 1, 1))
      offset = 999 if offset is None else offset
      return (abs(offset), -offset, str(zone))
  
imports: from __future__ import absolute_import, division, print_function
  import datetime
  from dateutil import tz, zoneinfo
  import hypothesis.strategies._internal.core
label_desc: Use image node_id 1 for calling a global function with example usage: __zone_sort_key(zone) and returns: abs,  unknown,  str