import { FilterChainContext } from '../../config/http/filter-chain-context';
/**
 * This only works because Node is single threaded...
 */
export declare class LogLevelManipulationFilter {
    private static LOG_LEVEL_BEFORE_CHANGE;
    static setLogLevelForTransaction(fCtx: FilterChainContext): Promise<boolean>;
    static clearLogLevelForTransaction(fCtx: FilterChainContext): Promise<boolean>;
}