/**
 * diff — compares two Frames and emits the MINIMAL set of changes, as runs
 * (contiguous segments) per changed line. A pure function (ADR-0001).
 */
import type { Cell, Frame, Size } from '../frame/index.js';
export interface Run {
    readonly x: number;
    readonly cells: readonly Cell[];
}
export interface LinePatch {
    readonly y: number;
    readonly runs: readonly Run[];
}
export interface Patch {
    readonly size: Size;
    readonly lines: readonly LinePatch[];
    readonly isEmpty: boolean;
}
export interface DifferOptions {
    readonly minGap?: number;
}
export interface Differ {
    diff(prev: Frame, next: Frame): Patch;
}
export declare function createDiffer(options?: DifferOptions): Differ;
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