import { ID, Ent, Viewer, Context } from "./base";
export declare class LoggedOutViewer implements Viewer {
    context?: Context | undefined;
    constructor(context?: Context | undefined);
    viewerID: null;
    viewer(): Promise<null>;
    instanceKey(): string;
}
export interface IDViewerOptions {
    viewerID: ID;
    context?: Context;
    ent?: Ent | null;
}
export declare class IDViewer implements Viewer {
    viewerID: ID;
    private ent;
    context?: Context;
    constructor(viewerID: ID, opts?: Partial<IDViewerOptions>);
    constructor(opts: IDViewerOptions);
    viewer(): Promise<Ent | null>;
    instanceKey(): string;
}