export declare const OBJECT_ID: unique symbol;
export declare const REFERENCE_ID: unique symbol;
export declare type Constructor<T = any> = (new (...args: any[]) => T);
export declare type AbstractConstructor<T = any> = (abstract new (...args: any[]) => T);
export declare type AnyConstructor<T = any> = Constructor<T> | AbstractConstructor<T>;
/**
 * Get the RPC type assigned to the given target (or property of target).
 * @internal
 * @param target
 * @param propertyKey
 * @returns
 */
export declare function getRpcType(target: any, propertyKey?: string): 'service' | 'remotable' | 'event' | 'call' | undefined;
/**
 * @internal
 * @param target
 * @returns
 */
export declare function getRpcUrl(target: any): string;
/**
 * @internal
 * @param target
 * @returns
 */
export declare function getRpcServiceName(target: any): string;