export declare const isMacOS: boolean;
export declare const copyFile: (src: string, dst: string, mode?: number) => Promise<void>;
export declare const copyFileSync: (src: string, dst: string, mode?: number) => void;
export declare const isCloneSupported: (path: string) => boolean;
export declare const constants: {
    readonly COPYFILE_EXCL: number;
    readonly COPYFILE_FICLONE: number;
    readonly COPYFILE_FICLONE_FORCE: number;
};