code: def area(rleObjs):
      if type(rleObjs) == list:
          return _mask.area(rleObjs)
      else:
          return _mask.area([rleObjs])[0]
  
imports: from rcnn.pycocotools import _mask
label_desc: Use image node_id 3 for calling a global function with example usage: area(rleObjs) and returns: _mask, _mask