code: def _integerize_bbox(bbox):
      return np.round(bbox).astype(np.int32)
  
file_path: chainercv/chainercv/links/model/fpn/mask_utils.py
imports: from __future__ import division
  import numpy
  import chainer
  from chainercv import transforms
label_desc: Use image node_id 3 for calling a global function with example usage: _integerize_bbox(bbox) and returns: np