import { OriFieldValue } from './alias';
import { ErrorArrayFieldValueEmpty } from './error';
declare const serverTimestampSymbol: unique symbol;
declare const deleteFieldSymbol: unique symbol;
declare const incrementSymbol: unique symbol;
declare const possiblyReadAsUndefinedSymbol: unique symbol;
declare const arraySymbol: unique symbol;
type ServerTimestampSymbol = typeof serverTimestampSymbol;
type DeleteSymbol = typeof deleteFieldSymbol;
type IncrementSymbol = typeof incrementSymbol;
type PossiblyReadAsUndefinedSymbol = typeof possiblyReadAsUndefinedSymbol;
type ArraySymbol = typeof arraySymbol;
declare class FieldValue<T> {
    protected 'Firelord_FieldValue_Do_Not_Access': T;
}
declare class ArrayFieldValue<T> {
    protected Firelord_ArrayFieldValue?: T;
}
export interface PossiblyReadAsUndefined extends FieldValue<PossiblyReadAsUndefinedSymbol> {
}
export interface ServerTimestamp extends OriFieldValue, FieldValue<ServerTimestampSymbol> {
}
export interface Delete extends OriFieldValue, FieldValue<DeleteSymbol> {
}
export interface Increment extends OriFieldValue, FieldValue<IncrementSymbol> {
}
export interface ArrayUnionOrRemove<T> extends OriFieldValue, FieldValue<ArraySymbol>, ArrayFieldValue<T> {
}
export type ArrayRemoveOrUnionFunction = <Elements extends unknown[]>(...elements: Elements extends [] ? [ErrorArrayFieldValueEmpty] : Elements) => ArrayUnionOrRemove<Elements[number]>;
export type UnassignedAbleFieldValue = Increment | ArrayUnionOrRemove<unknown>;
export type FieldValues = ServerTimestamp | UnassignedAbleFieldValue | Delete;
export {};