/**
 * The API surface of this module has been heavily inspired by the "type-graphql" library (https://github.com/MichalLytek/type-graphql), originally designed & released by Michal Lytek.
 * In the v6 major release of NestJS, we introduced the code-first approach as a compatibility layer between this package and the `@nestjs/graphql` module.
 * Eventually, our team decided to reimplement all the features from scratch due to a lack of flexibility.
 * To avoid numerous breaking changes, the public API is backward-compatible and may resemble "type-graphql".
 */
import { ResolveTypeFn } from '../interfaces';
/**
 * Interface defining options that can be passed to `@InterfaceType()` decorator.
 *
 * @publicApi
 */
export interface InterfaceTypeOptions {
    /**
     * Description of the argument.
     */
    description?: string;
    /**
     * If `true`, type will not be registered in the schema.
     */
    isAbstract?: boolean;
    /**
     * Custom implementation of the "resolveType" function.
     */
    resolveType?: ResolveTypeFn<any, any>;
    /**
     * Interfaces implemented by this interface.
     */
    implements?: Function | Function[] | (() => Function | Function[]);
}
/**
 * Decorator that marks a class as a GraphQL interface type.
 *
 * @publicApi
 */
export declare function InterfaceType(options?: InterfaceTypeOptions): ClassDecorator;
/**
 * Decorator that marks a class as a GraphQL interface type.
 *
 * @publicApi
 */
export declare function InterfaceType(name: string, options?: InterfaceTypeOptions): ClassDecorator;
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