code: def test_string_escape() -> None:
      assert serde.load_json(serde.dump_json(r"a\b")) == r"a\b"
  
imports: from functools import partial
  from operator import add
  from pathlib import Path
  from typing import NamedTuple
  import numpy
  import pandas
  import pytest
  from gluonts.core.component import equals, equals_list
  from gluonts.core import serde
label_desc: Use image node_id 4 for calling a global function with example usage: test_string_escape() without return types