class_docstr: Base class for all vision handlers
code: def initialize(self, context):
      super().initialize(context)
      self.profiler_args = {
          "activities": [ProfilerActivity.CPU],
          "record_shapes": True,
      }
  
file_path: serve/examples/nvidia_dali/custom_handler.py
imports: from torch.profiler import ProfilerActivity
  from ts.torch_handler.dali_handler import DALIHandler
label_desc: Use image node_id 2 for calling the DALIMNISTDigitClassifier obj's underlying member method code with example usage: obj.initialize(context) without return types