docstr: Return list of entities
  Return list of entities that will be accesible as tables.
  Returns:
      HandlerResponse: shoud have same columns as information_schema.tables
          (https://dev.mysql.com/doc/refman/8.0/en/information-schema-tables-table.html)
          Column 'TABLE_NAME' is mandatory, other is optional.
docstr_tok: ["Return","list","of","entities","Return","list","of","entities","that","will","be","accesible","as","tables",".","Returns",":","HandlerResponse",":","shoud","have","same","columns","as","information_schema.tables","(","https",":","\/\/dev.mysql.com\/doc\/refman\/8.0\/en\/information-schema-tables-table.html",")","Column","'TABLE_NAME","'","is","mandatory",",","other","is","optional","."]
code: def get_tables(self) -> StatusResponse:
      """Return list of entities
      Return list of entities that will be accesible as tables.
      Returns:
          HandlerResponse: shoud have same columns as information_schema.tables
              (https://dev.mysql.com/doc/refman/8.0/en/information-schema-tables-table.html)
              Column 'TABLE_NAME' is mandatory, other is optional.
      """
      self.connect()
  
      result = self.connection.tables(self.schemaName)
      try:
          if result:
              response = Response(
                  RESPONSE_TYPE.TABLE,
                  data_frame=pd.DataFrame(
                      [
                          result[i]["TABLE_NAME"]
                          for i in range(len(result))
                      ],
                      columns=["TABLE_NAME"],
                  ),
              )
          else:
              response = Response(RESPONSE_TYPE.OK)
  
      except Exception as e:
          logger.error(f"Error running while getting table {e} on ")
          response = Response(RESPONSE_TYPE.ERROR, error_message=str(e))
  
      return response
  
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 ibm_db_dbi
  from ibm_db_sa.ibm_db import DB2Dialect_ibm_db
label_desc: Use image node_id 7 for calling the DB2Handler obj's underlying member method code with example usage: obj.get_tables() and returns: response