code: def test_repr_dict_class():
      class Foo:
          def __repr__(self):
              return util.repr_(self)
  
      foo = Foo()
      foo.bar = "bar"
      assert repr(foo) == "Foo(bar='bar')"
  
imports: import streamlit.util
label_desc: Use image node_id 2 for calling a global function with example usage: test_repr_dict_class() and returns: util