code: def test_batched_points(self):
      overlay = NdOverlay(
          {i: Points(np.arange(i)) for i in range(1, 100)}
      )
      plot = bokeh_renderer.get_plot(overlay)
      extents = plot.get_extents(overlay, {})
      self.assertEqual(extents, (0, 0, 98, 98))
  
imports: import datetime
  import numpy
  import pandas
  from bokeh.models import CategoricalColorMapper, FactorRange, LinearColorMapper, Scatter
  from holoviews.core import NdOverlay
  from holoviews.core.options import Cycle
  from holoviews.element import Points
  from holoviews.plotting.bokeh.util import property_to_dict
  from holoviews.streams import Stream
  from ..utils import ParamLogStream
  from .test_plot import TestBokehPlot, bokeh_renderer
label_desc: Use image node_id 7 for calling the TestPointPlot obj's underlying member method code with example usage: obj.test_batched_points() without return types