matrix
fun Route.matrixServerServerApiServerRoutes(discoveryApiHandler: DiscoveryApiHandler, federationApiHandler: FederationApiHandler, roomVersionStore: RoomVersionStore, eventContentSerializerMappings: EventContentSerializerMappings = DefaultEventContentSerializerMappings, json: Json = createMatrixEventAndDataUnitJson(roomVersionStore, eventContentSerializerMappings))