Use the Display trait if it's satisfied, fallback to Debug otherwise, and
if neither are implemented use a default string value.
```rust use visual::{vis, Visual};
fn main() {
// The vis! macro wraps your type in a such a way that it can decide which trait to
// use: Display, Debug or neither
printer(vis!("hello")); // &str implements Display, so use it
printer(vis!(vec![1, 2, 3])); // Vec does not, but it impls Debug, so we use that
struct MyStruct;
printer(vis!(MyStruct)); // `MyStruct` impls neither, so we use a default string value
}
fn printerVisual wrapper around your type
println!("{}", t.get_display()); // Use get_display to get a string representation of your type
}
```
If neither traits are implemented, the string representation will be the one defined by the
constant visual::NON_DISPLAYABLE.