code: def __call__(self):
      self.num_requests += 1
      if self.num_requests % 2 == 1:
          self.my_counter.inc()
  
imports: from ray import serve
  from ray.serve import metrics
  import time
  import requests
label_desc: Use image node_id 2 for calling the MyDeployment obj's underlying member method code with example usage: obj.__call__() without return types