code: def does_sqlatype_require_index_len(
          coltype: Union[TypeEngine, VisitableType]) -> bool:
      
      coltype = _coltype_to_typeengine(coltype)
      if isinstance(coltype, sqltypes.Text):
          return True
      if isinstance(coltype, sqltypes.LargeBinary):
          return True
      return False
docs: Is the SQLAlchemy column type one that requires its indexes to have a
      length specified?
  
      (MySQL, at least, requires index length to be specified for ``BLOB`` and
      ``TEXT`` columns:
      http://dev.mysql.com/doc/refman/5.7/en/create-index.html.)