code: def after_iter(self, runner):
      runner.log_buffer.update({"time": time.time() - self.t})
      self.t = time.time()
  
imports: import time
  from .hook import HOOKS, Hook
label_desc: Use image node_id 3 for calling the IterTimerHook obj's underlying member method code with example usage: obj.after_iter(runner) without return types