code: def test_repr(self):
      # Check the repr, mainly to cover the code paths:
      assert (
          repr(SF(scaling=1.0)) == "_ScaledFloatTestDType(scaling=1.0)"
      )
  
imports: import sys
  from tempfile import NamedTemporaryFile
  import pytest
  import numpy
  from numpy.testing import assert_array_equal
  from numpy._core._multiarray_umath import _discover_array_parameters, _get_sfloat_dtype
label_desc: Use image node_id 5 for calling the TestSFloat obj's underlying member method code with example usage: obj.test_repr() without return types