code: def add_item(self, node):
      self.call += 1
      self.add_gpu_time(node.end_ns - node.start_ns)
      self.sum_blocks_per_sm += node.blocks_per_sm
      self.sum_occupancy += node.occupancy
  
file_path: VisualDL/visualdl/component/profiler/parser/kernel_parser.py
imports: import collections
label_desc: Use image node_id 4 for calling the DeviceItem obj's underlying member method code with example usage: obj.add_item(node) without return types