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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def _fix_integrity_error(f):
 """Ensure raising of IntegrityError on unique constraint violations. In earlier versions of hdbcli it doesn't raise the hdbcli.dbapi.IntegrityError exception for unique constraint violations. To support also older versions of hdbcli this decorator inspects the raised exception and will rewrite the exception based on HANA's error code. """


    @wraps(f)
    def wrapper(dialect, *args, **kwargs):
        try:
            return f(dialect, *args, **kwargs)
        except dialect.dbapi.Error as exc:
            if exc.errorcode == 301 and not isinstance(exc, dialect.dbapi.IntegrityError):
                raise dialect.dbapi.IntegrityError(exc)
            raise
    return wrapper