import { OpenAPIV3, OpenAPIV3_1 } from 'openapi-types';
import Ajv from 'ajv';
type SchemaUnion = OpenAPIV3.SchemaObject | OpenAPIV3_1.SchemaObject;
export declare function attachAdvancedValidators(ajv: Ajv): void;
export declare function validateSchema(schema: SchemaUnion): void;
export {};
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