export declare function activityReducer(state: {
    records: any[];
    filter: string;
    fetched: boolean;
    fetching: boolean;
    processing: boolean;
}, action: {
    type: any;
    payload: any;
}): {
    records: any;
    filter: string;
    fetched: boolean;
    fetching: boolean;
    processing: boolean;
} | {
    filter: any;
    records: any[];
    fetched: boolean;
    fetching: boolean;
    processing: boolean;
};