code: def test_dtype():
      f = np.arange(256).reshape((32, 8))
      output = _get_output(f, None, "test", np.float32)
      assert output.dtype == np.float32
  
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 2 for calling a global function with example usage: test_dtype() without return types