Method safe_construct

lib/sqlalchemy/sql/elements.py:5991–6002

(
        cls, seed: int | str, body: str, sanitize_key: bool = False
    )

    @classmethod
    def safe_construct(
        cls, seed: int | str, body: str, sanitize_key: bool = False
    ) -> _anonymous_label:
        # need to escape chars that interfere with format
        # strings in any case, issue #8724
        body = _anonymous_label_escape.sub("_", body)

        if sanitize_key:
            # sanitize_key is then an extra step used by BindParameter
            body = body.strip("_")

        return _anonymous_label(f"%({seed} {body.replace('%', '%%')})s")

    def __add__(self, other: str) -> _anonymous_label:
        if "%" in other and not isinstance(other, _anonymous_label):