export declare const OPEN_ENDED_PATTERNS: readonly ReadonlyRegExp[];
export interface ExtensionalDefinitionLike {
    type?: string | null;
    content?: string | null;
}
export interface ExtensionalCompletenessIssue {
    rule: 'ISO-704-6.4.5.1';
    severity: 'warning';
    message: string;
    match: string;
}
export declare function checkExtensionalCompleteness(definition: ExtensionalDefinitionLike | null | undefined): ExtensionalCompletenessIssue | null;
interface ReadonlyRegExp extends RegExp {
    readonly source: string;
    readonly flags: string;
}
export {};
//# sourceMappingURL=extensional-completeness.d.ts.map