code: def get_columns(self, table_name):
      query = f"""SELECT column_name, type_name 
          FROM sqream_catalog.columns 
          WHERE table_name = '{table_name}';
          """
      return self.query(query)
  
imports: from collections import OrderedDict
  from typing import Optional
  from mindsdb_sql.parser.ast.base import ASTNode
  from mindsdb.integrations.libs.base import DatabaseHandler
  from mindsdb.utilities import log
  from mindsdb_sql import parse_sql
  from mindsdb_sql.render.sqlalchemy_render import SqlalchemyRender
  from mindsdb.integrations.libs.response import HandlerStatusResponse, HandlerResponse, RESPONSE_TYPE
  from mindsdb.integrations.libs.const import HANDLER_CONNECTION_ARG_TYPE
  import pandas
  import pysqream
  from pysqream_sqlalchemy.dialect import SqreamDialect
label_desc: Use image node_id 7 for calling the SQreamDBHandler obj's underlying member method code with example usage: obj.get_columns(table_name) and returns: self