code: def test_curve_ellipsis_slice_x(self):
      sliced = hv.Curve([(i, 2 * i) for i in range(10)])[2:7, ...]
      self.assertEqual(sliced.range("x"), (2, 6))
  
imports: import numpy
  import holoviews
  from holoviews.element.comparison import ComparisonTestCase
label_desc: Use image node_id 1 for calling the TestEllipsisCharts obj's underlying member method code with example usage: obj.test_curve_ellipsis_slice_x() without return types