/**
 * Metadata key for OAuth scopes
 */
export declare const OAUTH_SCOPES_KEY = "oauth_scopes";
/**
 * Decorator to specify required OAuth scopes for an endpoint.
 *
 * Use with OAuthTokenGuard to enforce scope requirements.
 *
 * @example
 * @UseGuards(OAuthTokenGuard)
 * @OAuthScopes('photographs:read', 'photographs:write')
 * async updatePhotograph() { ... }
 *
 * @param scopes - Required OAuth scopes
 */
export declare const OAuthScopes: (...scopes: string[]) => import("@nestjs/common", { with: { "resolution-mode": "import" } }).CustomDecorator<string>;
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