/**
 * Best-effort extraction of version number from an inline comment on the same
 * line as `uses:`. Expected shape after update is, for example: `uses:
 * actions/checkout@<sha> # v5.0.0`.
 *
 * Only used when the current reference is a SHA. Returns null if not found.
 *
 * @param filePath - Absolute path to the YAML file.
 * @param lineNumber - 1-based line number of the `uses:` key.
 * @param cache - Optional cache of file contents by path.
 * @returns Extracted version (e.g., `v5.0.0`) or null when not present.
 */
export declare function readInlineVersionComment(filePath: undefined | string, lineNumber: undefined | number, cache?: Map<string, string>): Promise<string | null>;