code: def finish_event(self, modname, filename, tid=None):
      event = self.events[modname]
      end_time = self._get_current_time_from_start()
      event.end_time = end_time
  
file_path: catboost/library/python/import_tracing/lib/import_tracer.py
imports: import threading
  import time
  import collections
  import library.python.import_tracing.lib.event
  import library.python.import_tracing.lib.constants
label_desc: Use image node_id 3 for calling the ImportTracer obj's underlying member method code with example usage: obj.finish_event(modname, filename, tid) without return types