db.message stores values tied to a specific message ID.

BDFD equivalent: $getMessageVar / $setMessageVar.

Methods

Method	Description
await db.message.get(key, messageId?)	Read value for message
await db.message.set(key, value, messageId?)	Write value
await db.message.delete(key, messageId?)	Delete key
await db.message.list(key, order?, limit?, offset?, filter?)	List entries
await db.message.find(filter)	Search { key, id, value }[]
await db.message.reset(key)	Purge values and remove definition

const flag = await db.message.get('processed');
await db.message.set('processed', true);