How to make the result of the toString() method be displayed in a beautiful ladder, like JSON?

Question

Java

If you make toString () of some more or less complex class using the default Alt + Insert in Android Studio, then the output (when output to the log) is something like this:

Some1{f1=1, some=Some2{f2=2}}

What are the ways, libraries, to display beautifully, with indents? Something like this:

Some1{
....f1=1
....some=Some2{
........f2=2
....}
}