const next = (message)=> console.log("First observer message: " + message);
const error = (error) => console.log("Second observer error: " + error);
const complete = () => console.log("complete");
const next1 = (message)=> console.log("First observer message 1: " + message);
const error1 = (error) => console.log("Second observer error 1: " + error);
const complete1 = () => console.log("complete 1");