code: def synchronize(self):
      self.start.synchronize()
      self.end.synchronize()
  
file_path: pytorch/benchmarks/distributed/rpc/parameter_server/metrics/CUDAMetric.py
imports: import torch
  from .MetricBase import MetricBase
label_desc: Use image node_id 5 for calling the CUDAMetric obj's underlying member method code with example usage: obj.synchronize() without return types