code: def does_sqlatype_merit_fulltext_index(
          coltype: Union[TypeEngine, VisitableType],
          min_length: int = 1000) -> bool:
      
      coltype = _coltype_to_typeengine(coltype)
      return is_sqlatype_text_of_length_at_least(coltype, min_length)
docs: Is the SQLAlchemy column type a type that might merit a ``FULLTEXT``
      index (meaning a string type of at least ``min_length``)?