import { DateFieldComparison } from '@parlor/common/amplify-schema';
export declare enum PING_PERIOD {
    AllTime = "all-time",
    Past30days = "past-30-days",
    Past3Months = "past-3-months",
    PastYear = "past-year"
}
export declare const CHART_TABS: {
    id: PING_PERIOD;
    name: string;
}[];
export declare const pingsFilterByCreatedAt: (lowerDate: Date, variant: PING_PERIOD, upperDate?: Date) => DateFieldComparison;
