code: def test_proxy_mouse_handling_change(self):
      fig = Figure(_map=Map(), mouse_handling="GREEDY")
      fig.mouse_handling = "NONE"
      assert fig._map.mouse_handling == "NONE"
  
imports: import unittest
  import traitlets
  from ..figure import figure, Figure, FigureLayout
  from ..maps import Map
  from ..toolbar import Toolbar
  from ..errors_box import ErrorsBox
label_desc: Use image node_id 10 for calling the TestFigure obj's underlying member method code with example usage: obj.test_proxy_mouse_handling_change() without return types