code: def get_orm_classes_by_table_name_from_base(base: Type) -> Dict[str, Type]:
      
      # noinspection PyUnresolvedReferences
      return {cls.__tablename__: cls for cls in gen_orm_classes_from_base(base)}
docs: Given an SQLAlchemy ORM base class, returns a dictionary whose keys are
      table names and whose values are ORM classes.
  
      If you begin with the proper :class`Base` class, then this should give all
      tables and ORM classes in use.