class_docstr: A structure for storing masks and their related data in batched format.
  Implements basic filtering and concatenation.
class_docstr_tok: ["A","structure","for","storing","masks","and","their","related","data","in","batched","format",".","Implements","basic","filtering","and","concatenation","."]
code: def items(self) -> ItemsView[str, Any]:
      return self._stats.items()
  
imports: import numpy
  import paddle
  import math
  from copy import deepcopy
  from itertools import product
  from typing import Any, Dict, Generator, ItemsView, List, Tuple
label_desc: Use image node_id 5 for calling the MaskData obj's underlying member method code with example usage: obj.items() and returns: self