Source (line-bot-model 4.2.0 API)

All Known Implementing Classes:

GroupSource, RoomSource, UnknownSource, UserSource
```
public interface Source
```

- Method Summary
  
  All Methods Instance Methods Abstract Methods
  Modifier and Type Method Description
  
  java.lang.String getSenderId()
  message/event sender id.
  
  java.lang.String getUserId()

- Method Detail
  - getUserId
```
java.lang.String getUserId()
```
  - getSenderId
```
java.lang.String getSenderId()
```
    message/event sender id. It might be userId/roomId/roomId.
    
    Returns:
    
    message/event sender id