-async function processActivities (activities: Activity[], signatureActor?: ActorModel, inboxActor?: ActorModel) {
+async function processActivities (
+ activities: Activity[],
+ options: {
+ signatureActor?: MActorSignature
+ inboxActor?: MActorDefault
+ outboxUrl?: string
+ fromFetch?: boolean
+ } = {}
+) {
+ const { outboxUrl, signatureActor, inboxActor, fromFetch = false } = options
+
+ const actorsCache: { [ url: string ]: MActorSignature } = {}
+