code: def test_empty_partition(self):
      # In reference to github issue #6530
      a_original = np.array([0, 2, 4, 6, 8, 10])
      a = a_original.copy()
  
      # An empty partition should be a successful no-op
      a.partition(np.array([], dtype=np.int16))
  
      assert_array_equal(a, a_original)
  
file_path: numpy/numpy/_core/tests/test_item_selection.py
imports: import sys
  import pytest
  import numpy
  from numpy.testing import assert_, assert_raises, assert_array_equal, HAS_REFCOUNT
label_desc: Use image node_id 4 for calling the TestTake obj's underlying member method code with example usage: obj.test_empty_partition() without return types