export declare const PRESENCE_EVENT = "com.matrixsheets.presence";
export declare const PRESENCE_TIMEOUT_MS: number;
export interface PresenceContent {
    roomId: string;
    focus: string | null;
    timestamp: number;
    user: {
        id: string;
        name: string;
        color: string;
    };
}
export interface PresenceUpdate {
    userId: string;
    name: string;
    color: string;
    focus: string | null;
    timestamp: number;
}
export interface RemotePresence {
    userId: string;
    name: string;
    color: string;
    focus: string;
}
export interface ToDeviceEvent {
    type: string;
    content: unknown;
}
export declare function isPresenceContent(value: unknown): value is PresenceContent;
export declare function applyPresenceUpdates(current: RemotePresence[], updates: PresenceUpdate[]): RemotePresence[];
export declare function filterRelevantPresenceEvents(events: ToDeviceEvent[], options: {
    roomId: string;
    localUserId: string | null;
}): PresenceUpdate[];
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