CallableInterface (cpg 3.4.0 API)

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 CallableInterface<T extends Node>
```

- Method Summary
  
  All Methods Instance Methods Abstract Methods
  Modifier and Type Method Description
  
  void dispatch(T expr)

- Method Detail
  - dispatch
```
void dispatch(T expr)
```