export interface LogItem {
    time: Date;
    timeSinceLast: number;
    diffComputeTime: number;
    reducerComputeTime: number;
    diff: any;
    action: any;
}
export interface LoggerState {
    actionHistory: LogItem[];
}
export declare const loggerState: LoggerState;
export declare const reducerWrapper: (originalReducer: any) => (state: any, action: any) => any;
export declare const fastLoggerMiddleware: (store: any) => (next: any) => (action: any) => any;