code: def test_empty_repr():
      class Foo:
          def __repr__(self):
              return ""
  
      assert pretty_repr(Foo()) == ""
  
imports: import collections
  import io
  import sys
  from array import array
  from collections import UserDict, defaultdict
  from dataclasses import dataclass, field
  from typing import Any, List, NamedTuple
  import attr
  import pytest
  from rich.console import Console
  from rich.measure import Measurement
  from rich.pretty import Node, Pretty, _ipy_display_hook, install, pprint, pretty_repr
  from rich.text import Text
label_desc: Use image node_id 41 for calling a global function with example usage: test_empty_repr() and returns: str