export declare function getDaysInMonth(month: number, year: number): number;
export declare function getFirstDayOfMonth(month: number, year: number): number;
export declare function createEmptySlots(size: number): null[];
export interface CalendarEvent {
    day: number;
    month: number;
    year: number;
    color: string;
    [key: string]: unknown;
}
export declare function getEventsByDate(events: CalendarEvent[], day: number, month: number, year: number): CalendarEvent[];
export declare function getColorsForDate(events: CalendarEvent[], day: number, month: number, year: number): string[];
export declare function parseStringArrayAttribute(value: string | null, expectedLength?: number | null): string[] | null;
export declare function parseObjectAttribute(value: string | null): Record<string, unknown>;