Function "repair_json" raises an AttributeError exception when called with a certain input

[werpachowski-msft]

Describe the bug When I call "repair_json" with a certain input, it throws AttributeError in version 0.17.0:

in JSONParser.parse_string(self)

    234     lstring_delimiter = "“"
    235     rstring_delimiter = "”"
--> 236 elif char.isalpha():
    237     # This could be a <boolean> and not a string. Because (T)rue or (F)alse or (N)ull are valid
    238     if char.lower() in ["t", "f", "n"]:
    239         value = self.parse_boolean_or_null()

AttributeError: 'bool' object has no attribute 'isalpha'

To Reproduce

1. Install json_repair==0.17.0
2. Execute json_repair.repair_json("[{]", return_objects=True)

Expected behavior Returns "[]"

Desktop (please complete the following information):

• OS: Windows 11

Additional context

Bug occurs in 0.17.0 version only