import type { RefTable } from "./refs.js";
import type { CdpSend } from "./types.js";
export type { CdpSend } from "./types.js";
export interface SnapshotOptions {
    scope?: "viewport" | "full";
    interactiveOnly?: boolean;
    maxLines?: number;
    sinceLast?: boolean;
}
export interface SnapshotResult {
    text: string;
    lineCount: number;
    truncated: boolean;
    unchanged: boolean;
}
/** Reads the page in one round trip: a single script walks the DOM in an isolated
 *  world and returns finished, distilled lines with their element refs. */
export declare function buildSnapshot(send: CdpSend, sessionId: string, refs: RefTable, opts?: SnapshotOptions, previous?: string): Promise<SnapshotResult>;
export interface SnapshotDiff {
    added: string[];
    removed: string[];
    text: string;
}
/** Line-level difference between two snapshots, for post-action results. */
export declare function diffSnapshots(previous: string | undefined, next: string): SnapshotDiff;
//# sourceMappingURL=snapshot.d.ts.map