/**
 * NestJS interceptor to add Client Hints headers to response
 */
import { ExecutionContext, CallHandler } from '@nestjs/common';
import type { Observable } from 'rxjs';
/**
 * NestJS interceptor to add Client Hints headers to response
 *
 * @example
 * ```typescript
 * import { Module } from '@nestjs/common';
 * import { APP_INTERCEPTOR } from '@nestjs/core';
 * import { ClientHintsInterceptor } from '@plyaz/api/network/frameworks/nestjs';
 *
 * @Module({
 *   providers: [
 *     {
 *       provide: APP_INTERCEPTOR,
 *       useClass: ClientHintsInterceptor,
 *     },
 *   ],
 * })
 * export class AppModule {}
 * ```
 */
export declare class ClientHintsInterceptor {
    intercept(context: ExecutionContext, next: CallHandler): Observable<unknown>;
}
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