import { t } from "@rbxts/t";
/**
 * @hidden
 */
export interface MessageOptions<T extends "Event" | "Request" = "Event" | "Request"> {
    Unreliable?: boolean;
    Destination: "Server" | "Client";
    Type: T;
    Validators?: t.check<any>[];
    OnlyWhenActive?: boolean;
    ValueValidator?: T extends "Request" ? t.check<any> : undefined;
}
export declare const INVALID_MESSAGE_STR = "__WCS_INVALID_MESSAGE";
type GetDesiredMethodType<T extends MessageOptions> = (...args: any[]) => T["Type"] extends "Request" ? Promise<any> : void;
type ValidateUnreliable<T extends MessageOptions> = T["Unreliable"] extends true ? T["Type"] extends "Event" ? T : never : never;
export declare function Message<T extends MessageOptions>(Options: T): (ctor: Record<string, any>, methodName: string, _: TypedPropertyDescriptor<GetDesiredMethodType<ValidateUnreliable<T>>>) => void;
export {};