code: def _callback(self, row, key=None):
      logger.debug(f"trigger call: {row}, {key}")
  
      # set up environment
      ctx.load(self._ctx_dump)
  
      try:
          if key is not None:
              row.update(key)
          table = [row]
  
          # inject data to query
          query = copy.deepcopy(self.query)
  
          def find_table(node, is_table, **kwargs):
              if is_table:
                  if (
                      isinstance(node, Identifier)
                      and len(node.parts) == 1
                      and node.parts[0] == "TABLE_DELTA"
                  ):
                      # replace with data
                      return Data(table, alias=node.alias)
  
          query_traversal(query, find_table)
  
          # exec query
          ret = self.command_executor.execute_command(query)
          if ret.error_code is not None:
              self.set_error(ret.error_message)
  
      except Exception:
          self.set_error(str(traceback.format_exc()))
  
      db.session.commit()
  
file_path: mindsdb/mindsdb/interfaces/triggers/trigger_task.py
imports: import copy
  import traceback
  from mindsdb_sql import parse_sql
  from mindsdb_sql.parser.ast import Data, Identifier
  from mindsdb_sql.planner.utils import query_traversal
  from mindsdb.interfaces.storage import db
  from mindsdb.api.executor.controllers.session_controller import SessionController
  from mindsdb.api.executor.command_executor import ExecuteCommands
  from mindsdb.interfaces.database.projects import ProjectController
  from mindsdb.utilities import log
  from mindsdb.interfaces.tasks.task import BaseTask
  from mindsdb.utilities.context import context
label_desc: Use image node_id 3 for calling the TriggerTask obj's underlying member method code with example usage: obj._callback(row, key) and returns: Data