code: def __init__(self):
      self.num_requests = 0
      self.my_counter = metrics.Counter(
          "my_counter",
          description=(
              "The number of odd-numbered requests to this deployment."
          ),
          tag_keys=("model",),
      )
      self.my_counter.set_default_tags({"model": "123"})
  
imports: from ray import serve
  from ray.serve import metrics
  import time
  import requests
label_desc: Use image node_id 1 to create a new MyDeployment object  with example: obj = MyDeployment()