code: def test_emd_scaling():
      dist1 = np.ones(100) * 10
      dist2 = np.zeros(100)
      res = earth_movers_distance(
          dist1=dist1, dist2=dist2, margin_quantile_filter=0
      )
      assert_that(res, equal_to(1))
  
imports: import numpy
  from hamcrest import assert_that, calling, close_to, equal_to, raises
  from deepchecks.core.errors import DeepchecksValueError
  from deepchecks.utils.distribution.drift import cramers_v, earth_movers_distance, kolmogorov_smirnov
label_desc: Use image node_id 3 for calling a global function with example usage: test_emd_scaling() without return types