import { AdapterFormats, MuiPickersAdapter, PickerValidDate } from '@mui/x-date-pickers/models';
import { PickerNonNullableRangeValue, PickerRangeValue } from '@mui/x-date-pickers/internals';
export declare const isRangeValid: (adapter: MuiPickersAdapter, range: PickerRangeValue) => range is PickerNonNullableRangeValue;
export declare const isWithinRange: (adapter: MuiPickersAdapter, day: PickerValidDate, range: PickerRangeValue) => boolean;
export declare const isStartOfRange: (adapter: MuiPickersAdapter, day: PickerValidDate, range: PickerRangeValue) => boolean;
export declare const isEndOfRange: (adapter: MuiPickersAdapter, day: PickerValidDate, range: PickerRangeValue) => boolean;
export declare const formatRange: (adapter: MuiPickersAdapter, range: PickerRangeValue, formatKey: keyof AdapterFormats) => string | null;