code: def update_data(self):
      val = self.container.pop()
      result = self.user.child(val)
      result.update({"finish_time": str(datetime.datetime.now())})
  
file_path: explainx/lib/analytics.py
imports: from imports import *
label_desc: Use image node_id 9 for calling the Analytics obj's underlying member method code with example usage: obj.update_data() without return types