class_docstr: Set up executor: mock data handler and LW handler
code: def execute(self, sql):
      ret = self.command_executor.execute_command(
          parse_sql(sql, dialect="mindsdb")
      )
      if ret.error_code is not None:
          raise Exception()
      if isinstance(ret.data, list):
          ret.records = self.ret_to_df(ret).to_dict("records")
      return ret
  
imports: import copy
  import datetime
  import json
  import os
  import sys
  import tempfile
  from unittest import mock
  from pathlib import Path
  import duckdb
  import numpy
  import pandas
  from mindsdb_sql.render.sqlalchemy_render import SqlalchemyRender
  from mindsdb_sql import parse_sql
label_desc: Use image node_id 3 for calling the BaseExecutorMockPredictor obj's underlying member method code with example usage: obj.execute(sql) and returns: ret