import { AnyProperty } from '../model/properties.js';
/**
 * Checks if a property or its items have missing or incomplete type constraints.
 * Specifically, it validates whether `allowedTypes` or `restrictedTypes` are undefined or empty.
 * @param rootName - The root content type name for tracing.
 * @param property - The property definition to check.
 * @param result - The conversion result containing fields and fragments.
 * @param maxFragmentThreshold - Maximum fragment threshold for this check (default: 100).
 * @returns string | null - A warning message if type constraints are missing or incomplete, otherwise null.
 */
export declare function checkTypeConstraintIssues(rootName: string, property: AnyProperty, result: {
    fields: string[];
    extraFragments: string[];
}, maxFragmentThreshold?: number): string | null;