FunctionsNATSClientNATSClient CallableNATSClient(callme: { onDone: (params: any) => void; onOptions: (params: any) => void; onReady: (params: any) => void }): Promise<INATSClient>Parameterscallme: { onDone: (params: any) => void; onOptions: (params: any) => void; onReady: (params: any) => void }Returns Promise<INATSClient>