docstr: Checks if host is in an expired cooldown period.
docstr_tok: ["Checks","if","host","is","in","an","expired","cooldown","period","."]
code: def is_resurrected(self):
      """Checks if host is in an expired cooldown period."""
      if self._cooldown_period_end_ts > 0:
          return not self._in_cooldown_period(time.time())
      return False
  
imports: import io
  import logging
  import random
  import threading
  import time
  from collections import defaultdict
  from horovod.runner.common.util import safe_shell_exec
  from horovod.runner.elastic.worker import HostUpdateResult
label_desc: Use image node_id 10 for calling the HostState obj's underlying member method code with example usage: obj.is_resurrected() and returns: False, unknown