DisplayCallable (message-handler 1.2 API)

Type Parameters:

T - allows to enforce a type

Functional Interface:

This is a functional interface and can therefore be used as the assignment target for a lambda expression or method reference.
```
@FunctionalInterface
public interface DisplayCallable<T>
```
A callable interfaces that doesn't throw unnecessary Exception.

- Method Summary
  
  All Methods Instance Methods Abstract Methods
  Modifier and Type Method Description
  
  T call()

- Method Detail
  - call
```
T call()
```