code: def deserialize(cls, metric_name, value):
      t = Timer(metric_name)
      t.start(value.get("_start", 0))
      t.end(value.get("_end", 0))
      return t
  
imports: import time
  from contextlib import contextmanager
  from metaflow.sidecar import Message, MessageTypes, Sidecar
label_desc: Use image node_id 7 for calling the Timer obj's underlying member method code with example usage: obj.deserialize(cls, metric_name, value) and returns: t