em>writer</em> object is a “print formatter” type of a function. In other words, this method works exactly like the <code>printf()</code> function from C, or, like <code>println!()</code> from Rust. In the first argument of the function, you specify a template string, and, in the second argument, you provide a list of values (or objects) that you want to insert into your template message.</p>
<p>Ideally, the template string in the first argument should contain some format specifier. Each format specifie