code: def delete(self) -> bool:
      filter_ = get_filter(self.resource, self.key)
      if (
          entry := db.session.query(KeyValueEntry)
          .filter_by(**filter_)
          .first()
      ):
          db.session.delete(entry)
          db.session.commit()
          return True
      return False
  
file_path: superset/superset/commands/key_value/delete.py
imports: import logging
  from typing import Union
  from uuid import UUID
  from sqlalchemy.exc import SQLAlchemyError
  from superset import db
  from superset.commands.base import BaseCommand
  from superset.key_value.exceptions import KeyValueDeleteFailedError
  from superset.key_value.models import KeyValueEntry
  from superset.key_value.types import KeyValueResource
  from superset.key_value.utils import get_filter
label_desc: Use image node_id 4 for calling the DeleteKeyValueCommand obj's underlying member method code with example usage: obj.delete() and returns: False, True