/**
 * Type asserts that `t` is truthy.
 * Throws an error if `t` is null or undefined.
 *
 * @param varName The variable name to include in the error to throw when t is
 *   empty. Defaults to 'value'.
 */
declare function nonEmpty<T>(t: T | null | undefined | "" | 0 | -0 | 0n | false | typeof NaN, varName?: string): T;

export { nonEmpty };