code: def test_normalize_sequence():
      f = np.arange(64)
      assert len(_normalize_sequence(f, [1], "test")) == f.ndim
      f = f.reshape((16, -1))
      assert _normalize_sequence(f, [2, 4], "test") == [2, 4]
  
imports: import numpy
  from mahotas.internal import _get_output, _get_axis
  from mahotas.internal import _normalize_sequence, _verify_is_integer_type, _verify_is_floatingpoint_type, _as_floating_point_array
  from mahotas.internal import _check_3
  import pytest
label_desc: Use image node_id 9 for calling a global function with example usage: test_normalize_sequence() without return types