code: def forward(self):
      return self.q_observer.calculate_qparams()
  
file_path: pytorch/benchmarks/operator_benchmark/pt/qobserver_test.py
imports: import torch
  import torch.ao.quantization.observer
  import operator_benchmark
label_desc: Use image node_id 2 for calling the QObserverBenchmarkCalculateQparams obj's underlying member method code with example usage: obj.forward() and returns: self