interface Stream {
	
	/*
	{"@description" : "Wait for n bytes of data to be received, or for the connection to be terminated."}
	*/
	byte[] recv(int n)
	
	/*
	{"@description" : "Send the given data on the stream; the return value is how many bytes have been successfully buffered by the protocol."}
	*/
	int send(byte dat[])
	
	}