code: def __init__(self, event_name, place, memory_type="Allocated"):
      self.event_name = event_name
      self.place = place
      self.allocation_count = 0
      self.free_count = 0
      self.allocation_size = 0
      self.free_size = 0
      self.increase_size = 0
      self.memory_type = memory_type
  
file_path: VisualDL/visualdl/component/profiler/parser/memory_parser.py
imports: import collections
  from .utils import traverse_tree
label_desc: Use image node_id 1 to create a new MemoryItem object  with example: obj = MemoryItem(event_name, place, memory_type)