code: def test_bivariate_array_kdim_type(self):
      dist = Bivariate(np.array([[0, 1], [1, 2], [2, 3]]))
      assert np.issubdtype(dist.get_dimension_type(0), np.int_)
      assert np.issubdtype(dist.get_dimension_type(1), np.int_)
  
imports: import numpy
  import pandas
  import pytest
  from holoviews.core.dimension import Dimension
  from holoviews.core.options import Compositor, Store
  from holoviews.element import Area, Bivariate, Contours, Curve, Distribution, Image, Points, Polygons
label_desc: Use image node_id 15 for calling the TestStatisticalElement obj's underlying member method code with example usage: obj.test_bivariate_array_kdim_type() without return types