AgeRange (line-bot-model 4.2.0 API)

```
public interface AgeRange
```
Key of AgeTile.
Age range contains lower bound `from` and upper bound `to`. Both of them are inclusive boundary.
And un-identified friends aggregated in UNKNOWN key. UNKNOWN key is immutable singleton instance. You can check equal to UNKNOWN by == or #equals.

See Also:

AgeTile.getAge()

Field Summary

Fields
Modifier and Type Field Description

static AgeRange UNKNOWN
Unknown identifier of AgeRange.

Method Summary

All Methods Static Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`java.util.OptionalInt`	`getFrom()`	Start of age range.
`java.lang.String`	`getJsonRawValue()`
`java.util.OptionalInt`	`getTo()`	End of age range.
`static AgeRange`	`valueOf(java.lang.String value)`

- Field Detail
  - UNKNOWN
```
static final AgeRange UNKNOWN
```
    Unknown identifier of AgeRange.
    This instance is immutable and singleton. You can check equal to UNKNOWN by == or #equals.
- Method Detail
  - valueOf
```
static AgeRange valueOf(java.lang.String value)
```
  - getFrom
```
java.util.OptionalInt getFrom()
```
    Start of age range. Inclusive.
    
    Returns:
    
    Start of age range. Inclusive. null iff UNKNOWN range.
  - getTo
```
java.util.OptionalInt getTo()
```
    End of age range. Inclusive.
    
    Returns:
    
    End of age range. Exclusive. null if UNKNOWN or last (<∞) range .
  - getJsonRawValue
```
java.lang.String getJsonRawValue()
```