class_docstr: Split bounding boxes into 4 columns.
  
  Parameters
  ----------
  axis : int, default is -1
      On which axis to split the bounding box. Default is -1(the last dimension).
  squeeze_axis : boolean, default is `False`
      If true, Removes the axis with length 1 from the shapes of the output arrays.
      **Note** that setting `squeeze_axis` to ``true`` removes axis with length 1 only
      along the `axis` which it is split.
      Also `squeeze_axis` can be set to ``true`` only if ``input.shape[axis] == num_outputs``.
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code: def __init__(self, axis, squeeze_axis=False, **kwargs):
      super(BBoxSplit, self).__init__(**kwargs)
      self._axis = axis
      self._squeeze_axis = squeeze_axis
  
imports: from __future__ import absolute_import
  import numpy
  from mxnet import gluon
label_desc: Use image node_id 1 to create a new BBoxSplit object from inherited base classes: gluon with example: obj = BBoxSplit(axis, squeeze_axis)