Create another method prettyBrackets that is initially just a copy of matchBrackets. Modify prettyBrackets to instead return a String. Build the result string as follows: i$.$ If a character is not an opening nor closing bracket, simply ignore it and continue; ii$.$ If a character is an opening bracket, append a number of tabs according to the current "level" or "depth" of nesting. Then append the bracket, then a newline, such as: $\backslash$t$\backslash$t$\{$

For example, the first opening bracket should have zero tab characters, and the next nested opening bracket should have one tab.