code: def test_center_no_zoom(self):
      with self.assertRaises(ValueError):
          figure(center=(10.0, 20.0))
  
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 4 for calling the TestFigureFactory obj's underlying member method code with example usage: obj.test_center_no_zoom() without return types