code: def test_fieldless_structured(self):
      # gh-10366
      no_fields = np.dtype([])
      arr_no_fields = np.empty(4, dtype=no_fields)
      assert_equal(
          repr(arr_no_fields), "array([(), (), (), ()], dtype=[])"
      )
  
imports: import sys
  import gc
  from hypothesis import given
  from hypothesis.extra import numpy
  import pytest
  import numpy
  from numpy.testing import assert_, assert_equal, assert_raises, assert_warns, HAS_REFCOUNT, assert_raises_regex
  from numpy.core.arrayprint import _typelessdata
  import textwrap
label_desc: Use image node_id 8 for calling the TestArrayRepr obj's underlying member method code with example usage: obj.test_fieldless_structured() without return types