code: def __init__(self, left, right, top, bottom):
      self.left = left
      self.right = right
      self.top = top
      self.bottom = bottom
  
file_path: geoplotlib/examples/quadtree.py
imports: import geoplotlib
  from geoplotlib.layers import BaseLayer
  from geoplotlib.core import BatchPainter
  from geoplotlib.utils import BoundingBox
  import numpy
label_desc: Use image node_id 1 to create a new QuadTree object  with example: obj = QuadTree(left, right, top, bottom)