code: def _scale_enum(anchor, scales):
      """Enumerate a set of anchors for each scale wrt an anchor."""
      w, h, x_ctr, y_ctr = _whctrs(anchor)
      ws = w * scales
      hs = h * scales
      anchors = _mkanchors(ws, hs, x_ctr, y_ctr)
      return anchors
  
file_path: gluon-cv/gluoncv/model_zoo/rcnn/rpn/anchor.py
imports: from __future__ import absolute_import
  import numpy
  from mxnet import gluon
label_desc: Use image node_id 6 for calling a global function with example usage: _scale_enum(anchor, scales) and returns: anchors