Method coerce

lib/sqlalchemy/ext/mutable.py:973–982

Convert plain list to instance of this class.

(
        cls, key: str, value: MutableList[_T] | _T
    )

    @classmethod
    def coerce(
        cls, key: str, value: MutableList[_T] | _T
    ) -> Optional[MutableList[_T]]:
        """Convert plain list to instance of this class."""
        if not isinstance(value, cls):
            if isinstance(value, list):
                return cls(value)
            return Mutable.coerce(key, value)
        else:
            return value


class MutableSet(Mutable, Set[_T]):