def migrate(cls, autogenerate: bool = False) -> bool | None:
        """Execute alembic migrations for all sqlmodel Model classes.

        If alembic is not installed or has not been initialized for the project,
        then no action is performed.

        If there are no revisions currently tracked by alembic, then
        an initial revision will be created based on sqlmodel metadata.

        If models in the app have changed in incompatible ways that alembic
        cannot automatically generate revisions for, the app may not be able to
        start up until migration scripts have been corrected by hand.

        Args:
            autogenerate: If True, generate migration script and use it to upgrade schema
                (otherwise, just bring the schema to current "head" revision).

        Returns:
            True - indicating the process was successful.
            None - indicating the process was skipped.
        """
        if not environment.ALEMBIC_CONFIG.get().exists():
            return None

        with cls.get_db_engine().connect() as connection:
            cls._alembic_upgrade(connection=connection)
            if autogenerate:
                changes_detected = cls.alembic_autogenerate(connection=connection)
                if changes_detected:
                    cls._alembic_upgrade(connection=connection)
            connection.commit()
        return True
Execute alembic migrations for all sqlmodel Model classes.

        If alembic is not installed or has not been initialized for the project,
        then no action is performed.

        If there are no revisions currently tracked by alembic, then
        an initial revision will be created based on sqlmodel metadata.

        If models in the app have changed in incompatible ways that alembic
        cannot automatically generate revisions for, the app may not be able to
        start up until migration scripts have been corrected by hand.

        Args:
            autogenerate: If True, generate migration script and use it to upgrade schema
                (otherwise, just bring the schema to current "head" revision).

        Returns:
            True - indicating the process was successful.
            None - indicating the process was skipped.
        
reflex/model.py