class_docstr: Fixed offset in minutes east from UTC.
code: def dst(self, dt):
      return ZERO
  
imports: from datetime import tzinfo, timedelta, datetime
  from pytz import HOUR, ZERO, UTC
  import time
label_desc: Use image node_id 4 for calling the FixedOffset obj's underlying member method code with example usage: obj.dst(dt) and returns: ZERO