export declare function isGitRepo(cwd: string): boolean;
export declare function hasUncommittedChanges(cwd: string): boolean;
export declare function getUncommittedStatus(cwd: string): string | null;
export declare function createCheckpoint(cwd: string, message: string, paths?: string[], expectedContentHashes?: ReadonlyMap<string, string>): string | null;
export declare function restoreToCheckpoint(cwd: string, sha: string): boolean;
export declare function getChangedFileNames(cwd: string): string[];
export declare function getChangedPaths(cwd: string): string[];
export declare function getCurrentHead(cwd: string): string | null;