type Extends<T, E, R1, R2> = T extends E ? R1 : R2;
type ICallable<A extends any[] = any[], R = any> = (...args: A) => R;
type Match = string | undefined;
export declare const apply: <V extends unknown, C extends ICallable, R1 = Promise<ReturnType<C>>, R2 = ReturnType<C>>(value: V, cb: C) => Extends<V, Promise<any>, R1, R2>;
export type TGitRootSync = (cwd?: string) => Match;
export type TGitRoot = {
    (cwd: string | undefined, sync: true): Match;
    (cwd?: string): Promise<Match>;
    sync: TGitRootSync;
};
export declare const gitRoot: TGitRoot;
export declare const gitRootSync: (cwd?: string) => Match;
export {};