import { type OperationalDate } from '@tmlmobilidade/go-types-shared';
/**
 * Represents the type of exception for a service
 * in the GTFS (General Transit Feed Specification) format.
 * The exception type indicates whether a service
 * has been added or removed for a specific date.
 */
export type GTFS_ExceptionType = 1 | 2;
/**
 * Validates and transforms a value into a GTFS Exception Type.
 * It accepts numeric or string representations of exception types.
 * @param value The value to validate and transform.
 * @returns A GTFS Exception Type value (1 or 2).
 * @throws Error if the value is not a valid GTFS Exception Type representation.
 */
export declare function validateGtfsExceptionType(value: number | string): GTFS_ExceptionType;
/**
 * Represents a calendar date exception in the GTFS format.
 * A calendar date exception indicates a specific date
 * when a service is either added or removed from the schedule.
 */
export interface GTFS_CalendarDate {
    date: OperationalDate;
    exception_type: GTFS_ExceptionType;
    service_id: string;
}
/**
 * Represents a raw calendar date exception in the GTFS format.
 * This interface is used to parse raw data from GTFS files,
 * where fields may be optional or represented as strings.
 * It is typically used for data ingestion before validation
 * and transformation into the `GTFS_CalendarDate` format.
 */
export interface GTFS_CalendarDate_Raw {
    date?: string;
    exception_type?: string;
    service_id?: string;
}
/**
 * Validates and transforms a raw GTFS Calendar Date exception
 * into the GTFS_CalendarDate format.
 * This function checks the types of fields, converts string representations
 * to appropriate types, and ensures that required fields are present.
 * @param rawData The raw calendar date exception data to validate and transform.
 * @returns A validated GTFS_CalendarDate object.
 */
export declare function validateGtfsCalendarDate(rawData: GTFS_CalendarDate_Raw): GTFS_CalendarDate;