code: def test_is_point_is_filled():
      # verify that `is_point` and `is_filled` are attributes and that they
      # they receive the correct values
      if not np:
          skip("numpy not installed.")
  
      x, u = symbols("x, u")
  
      s = LineOver1DRangeSeries(
          cos(x), (x, -5, 5), "", is_point=False, is_filled=True
      )
      assert (not s.is_point) and s.is_filled
      s = LineOver1DRangeSeries(
          cos(x), (x, -5, 5), "", is_point=True, is_filled=False
      )
      assert s.is_point and (not s.is_filled)
  
      s = List2DSeries(
          [0, 1, 2], [3, 4, 5], is_point=False, is_filled=True
      )
      assert (not s.is_point) and s.is_filled
      s = List2DSeries(
          [0, 1, 2], [3, 4, 5], is_point=True, is_filled=False
      )
      assert s.is_point and (not s.is_filled)
  
      s = Parametric2DLineSeries(
          cos(x), sin(x), (x, -5, 5), is_point=False, is_filled=True
      )
      assert (not s.is_point) and s.is_filled
      s = Parametric2DLineSeries(
          cos(x), sin(x), (x, -5, 5), is_point=True, is_filled=False
      )
      assert s.is_point and (not s.is_filled)
  
      s = Parametric3DLineSeries(
          cos(x), sin(x), x, (x, -5, 5), is_point=False, is_filled=True
      )
      assert (not s.is_point) and s.is_filled
      s = Parametric3DLineSeries(
          cos(x), sin(x), x, (x, -5, 5), is_point=True, is_filled=False
      )
      assert s.is_point and (not s.is_filled)
  
imports: from sympy import latex, exp, symbols, I, pi, sin, cos, tan, log, sqrt, re, im, arg, frac, Sum, S, Abs, lambdify, Function, dsolve, Eq, floor, Tuple
  from sympy.external import import_module
  from sympy.plotting.series import LineOver1DRangeSeries, Parametric2DLineSeries, Parametric3DLineSeries, SurfaceOver2DRangeSeries, ContourSeries, ParametricSurfaceSeries, ImplicitSeries, _set_discretization_points, List2DSeries
  from sympy.testing.pytest import raises, warns, XFAIL, skip, ignore_warnings
label_desc: Use image node_id 10 for calling a global function with example usage: test_is_point_is_filled() without return types