export declare const DIFF_HELP = "usage: gws-axi docs diff <fileId> <revA> [revB] [flags]\nargs[3]:\n  <fileId>             The Google Doc / Drive file ID (the portion of the URL after /d/)\n  <revA>               The \"from\" revision id (from `gws-axi docs revisions <fileId>`)\n  <revB>               The \"to\" revision id (optional; defaults to the head revision)\nflags[3]:\n  --full               Don't truncate the diff (default cap: 8000 chars)\n  --out <path>         Write the full unified diff to a file (implies --full)\n  --account <email>    Account override when 2+ are configured\nexamples:\n  gws-axi docs diff 1Kc9mv... 841 865\n  gws-axi docs diff 1Kc9mv... 841            # 841 vs head\n  gws-axi docs diff 1Kc9mv... 841 865 --out ./change.diff\noutput:\n  A `document{id,name,type}` header, `from{revision,modified,author}` and\n  `to{revision,modified,author}` provenance blocks, a `summary{lines_added,\n  lines_removed,changed}`, and a `diff` block of the unified diff (truncated\n  unless --full/--out). The diff shows the changes that transform revA into revB.\nnotes:\n  Native Google Docs only. Google exposes no diff API, so this exports BOTH\n  revisions to markdown server-side and diffs them locally \u2014 the result is a\n  diff of two markdown exports (lossy relevance previews), NOT a faithful\n  editorial diff: formatting-only or Google-specific changes may be invisible,\n  and native revision history is itself a sparse sample.\n";
interface ParsedFlags {
    fileId: string;
    revA: string;
    revB: string | undefined;
    full: boolean;
    out: string | undefined;
}
export declare function parseFlags(args: string[]): ParsedFlags;
export interface DiffResult {
    unified: string;
    linesAdded: number;
    linesRemoved: number;
    changed: boolean;
}
/**
 * Compute a unified diff (and added/removed line counts) of two text blobs.
 * Argument order is respected — the diff transforms `textA` into `textB`.
 * Pure (no I/O) so it's unit-testable.
 */
export declare function computeDiff(labelA: string, labelB: string, textA: string, textB: string, headerA?: string, headerB?: string): DiffResult;
export declare function docsDiffCommand(account: string, args: string[]): Promise<string>;
export {};