export declare type CollaborationOperation = {
    operation: "INSERT" | "DELETE";
    position: number;
    length?: number;
    text?: string;
};
export declare type RemoteSelection = {
    anchor: number;
    head: number;
    color: string;
    username: string;
    userId: string;
};
export interface CollaborationDocumentInterface {
    toString(): string;
    onUpdate(callback?: (operations: CollaborationOperation[]) => void): void;
    insert(position: number, text: string): void;
    delete(index: number, length: number): void;
    applyOperations(operations: CollaborationOperation[]): void;
    updateSelection(anchor: number, head: number): void;
    selections(): RemoteSelection[];
}
export declare class CollaborationExtension {
    getDocument?: (pluginId: string, documentId: string, initialContent: string) => CollaborationDocumentInterface;
}