/**
 * @param {unknown} value
 * @param {string} label  identifier used in the error message
 * @returns {string}
 */
export function requireNonEmptyString(value: unknown, label: string): string;
/**
 * @param {unknown} value
 * @param {string} label  identifier used in the error message
 * @param {number} min    inclusive lower bound
 * @returns {number}
 */
export function requireIntegerAtLeast(value: unknown, label: string, min: number): number;