import CDP from "chrome-remote-interface";
export type MutationSummary = {
    newElements: {
        backendNodeId: number;
        tag: string;
        text: string;
        role?: string;
    }[];
    removedElements: {
        backendNodeId: number;
        tag: string;
        text: string;
    }[];
    attributeChanges: {
        backendNodeId: number;
        element: string;
        attribute: string;
        oldValue: string | null;
        newValue: string;
    }[];
    significantChange: boolean;
};
export declare function watchMutations(session: CDP.Client, durationMs: number): Promise<MutationSummary>;