/**
 * 数値かどうかを判定する
 * Check if data is a number
 * @param data Data to check
 * @returns True if data is a number
 */
export declare const isNumber: (data: unknown) => data is number;
/**
 * 数値かどうかを判定する(配列)
 * Check if data is a number[]
 * @param data Data to check
 * @returns True if data is a number[]
 */
export declare const isNumbers: (data: unknown) => data is number[];