code: def test_indexed_array_empty():
      frame = IndexedArray()
      assert frame.index == range(0)
      np.testing.assert_array_equal(frame.values, np.empty((0, 0)))
  
imports: import numpy
  import pytest
  from stellargraph import IndexedArray
label_desc: Use image node_id 1 for calling a global function with example usage: test_indexed_array_empty() without return types