code: def test_identical_samples(self):
      x = np.zeros((10, 2), int)
      hist, edges = histogramdd(x, bins=2)
      assert_array_equal(edges[0], np.array([-0.5, 0.0, 0.5]))
  
imports: import numpy
  from numpy.lib.histograms import histogram, histogramdd, histogram_bin_edges
  from numpy.testing import assert_, assert_equal, assert_array_equal, assert_almost_equal, assert_array_almost_equal, assert_raises, assert_allclose, assert_array_max_ulp, assert_raises_regex, suppress_warnings
  from numpy.testing._private.utils import requires_memory
  import pytest
label_desc: Use image node_id 5 for calling the TestHistogramdd obj's underlying member method code with example usage: obj.test_identical_samples() without return types