import { LookupInMacro, MutateInMacro } from '../sdspecs.js';
/**
 * The value is an instance of {@link LookupInMacro}.
 *
 * @param value Value to guard against.
 */
export declare function isLookupInMacro(value: unknown): value is LookupInMacro;
/**
 * The value is an instance of {@link MutateInMacro}.
 *
 * @param value Value to guard against.
 */
export declare function isMutateInMacro(value: unknown): value is MutateInMacro;
/**
 * The value is not an empty array.
 *
 * @param value Value to guard against.
 */
export declare function arrayIsNotEmpty<T>(value: ReadonlyArray<T>): value is [T, ...T[]];