/**
 * NestJS guard base class for network conditions
 */
import { ExecutionContext } from '@nestjs/common';
import type { NetworkInfo } from '@plyaz/types/api';
/**
 * NestJS guard to check network conditions
 *
 * @example
 * ```typescript
 * import { Injectable, CanActivate, ExecutionContext } from '@nestjs/common';
 * import { NetworkGuard } from '@plyaz/api/network/frameworks/nestjs';
 *
 * @Injectable()
 * export class HighQualityOnlyGuard extends NetworkGuard {
 *   canActivate(context: ExecutionContext): boolean {
 *     const networkInfo = this.getNetworkInfo(context);
 *     return networkInfo.effectiveType === '4g' && !networkInfo.saveData;
 *   }
 * }
 *
 * @Controller('api')
 * @UseGuards(HighQualityOnlyGuard)
 * export class HighQualityController {
 *   // Routes here only accessible on 4G without data saver
 * }
 * ```
 */
export declare abstract class NetworkGuard {
    protected getNetworkInfo(context: ExecutionContext): NetworkInfo;
    abstract canActivate(context: ExecutionContext): boolean | Promise<boolean>;
}
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