export type RpcEndpointSyncVoid<Parameters extends any[]> = RpcEndpointBase<Parameters, void, true, false>;
export interface RpcEndpointSync<Parameters extends any[], Return> extends RpcEndpointBase<Parameters, Return, true, true> {
    readonly bufferSize: number;
}
export interface RpcEndpointAsync<Parameters extends any[], Return> extends RpcEndpointBase<Parameters, Return, false, true> {
    readonly hasReturnTransfer: false;
}
export interface RpcEndpointAsyncWithTransfer<Parameters extends any[], Return> extends RpcEndpointBase<Parameters, Return, true, true> {
    readonly hasReturnTransfer: true;
}
export type RpcEndpointAsyncVoid<Parameters extends any[]> = RpcEndpointBase<Parameters, void, false, false>;
export interface RpcEndpointBase<Parameters extends any[], Return, IsSync extends boolean, HasReturn extends boolean> {
    /**
     * The name of this rpc endpoint.
     * Rpc instance use this name to recognize which callback to call.
     * Keep in mind: this should be unique.
     * @public
     */
    readonly name: string;
    /**
     * @private
     * make typescript happy
     */
    readonly _TypeParameters: Parameters;
    /**
     * @private
     * make typescript happy
     */
    readonly _TypeReturn: Return;
    /**
     * @public
     * if this endpoint has return value.
     * Only valid for sync endpoints.
     * Always true for async endpoints.
     */
    readonly hasReturn: HasReturn;
    /**
     * @public
     * the call is a async call or not
     */
    readonly isSync: IsSync;
    /**
     * The byte size for return value buffer.
     * The return value will be encoded to json string in utf-8
     * So you should ensure this size is enough for your stringified return value.
     */
    readonly bufferSize: never | number;
    /**
     * @public
     * Make the message invoke created by hasReturn support transfer.
     * Only valid for async and hasReturn endpoints
     */
    readonly hasReturnTransfer: never | boolean;
}
export type RpcEndpoint<Parameters extends any[], Return> = RpcEndpointSyncVoid<Parameters> | RpcEndpointSync<Parameters, Return> | RpcEndpointAsync<Parameters, Return> | RpcEndpointAsyncVoid<Parameters> | RpcEndpointAsyncWithTransfer<Parameters, Return>;
export declare function createRpcEndpoint<Parameters extends any[], Return = void>(name: string, isSync: false, hasReturn: false): RpcEndpointAsyncVoid<Parameters>;
export declare function createRpcEndpoint<Parameters extends any[], Return = void>(name: string, isSync: false, hasReturn: true): RpcEndpointAsync<Parameters, Return>;
export declare function createRpcEndpoint<Parameters extends any[], Return = void>(name: string, isSync: false, hasReturn: true, hasReturnTransfer: false): RpcEndpointAsync<Parameters, Return>;
export declare function createRpcEndpoint<Parameters extends any[], Return = void>(name: string, isSync: false, hasReturn: true, hasReturnTransfer: true): RpcEndpointAsyncWithTransfer<Parameters, Return>;
export declare function createRpcEndpoint<Parameters extends any[]>(name: string, isSync: true, hasReturn: false): RpcEndpointSyncVoid<Parameters>;
export declare function createRpcEndpoint<Parameters extends any[], Return>(name: string, isSync: true, hasReturn: true, hasReturnTransfer: false, bufferSize: number): RpcEndpointSync<Parameters, Return>;