code: def area(boxlist):
      """Computes area of boxes.
  
      Args:
        boxlist: BoxList holding N boxes
  
      Returns:
        a numpy array with shape [N*1] representing box areas
      """
      y_min, x_min, y_max, x_max = boxlist.get_coordinates()
      return (y_max - y_min) * (x_max - x_min)
  
imports: from __future__ import absolute_import, division, print_function, unicode_literals
  import numpy
  from .None import np_box_list, np_box_ops
label_desc: Use image node_id 1 for calling a global function with example usage: area(boxlist) and returns: unknown