code: def __init__(self, enabled, clear_cache=False):
      self.enabled = enabled
      if clear_cache:
          self.__class__.STATS.clear()
  
file_path: streamalert/streamalert/shared/stats.py
imports: from collections import defaultdict
  import time
  from streamalert.shared.logger import get_logger
label_desc: Use image node_id 1 to create a new RuleStatisticTracker object  with example: obj = RuleStatisticTracker(enabled, clear_cache)