export declare function arrify<T>(value: T | readonly T[] | undefined | null): T[];
export declare function deepClone<T>(input: T): T;
export declare function expandFilePaths(args: string | string[]): string[];
/** Sanitises `input` to be a valid JS identifier. */
export declare function sanitizeId(input: string): string;
export declare function sha1sum(data: unknown): string;
export declare function unescapeJsonPointer(pointer: string): string;