import { CanActivate, ExecutionContext } from "@nestjs/common";
import { Observable } from "rxjs";
import { HealthModuleOptions } from "./health.module";
export declare class HealthAuthGuard implements CanActivate {
    private options;
    constructor(options: HealthModuleOptions);
    canActivate(context: ExecutionContext): boolean | Promise<boolean> | Observable<boolean>;
}