ChangeStateAction (sdk 1.19.0 API)

```
public interface ChangeStateAction
```
Action to change the state with knowledge of the current state

- Method Summary
  
  All Methods Instance Methods Abstract Methods
  Modifier and Type Method Description
  
  State run(State state)
  Action to run

- Method Detail
  - run
```
State run(State state)
```
    Action to run
    
    Parameters:
    
    state - current state
    
    Returns:
    
    the new state to set, if null will do nothing