Visitor

All Implemented Interfaces:
```
public interface Expo.Visitor<T extends Object>

                    
```
An interface that defines how to map each variant of Expo to a value of type T.

Nested Class Summary

Nested Classes
Modifier and Type	Class	Description

Field Summary

Fields
Modifier and Type	Field	Description

Constructor Summary

Constructors
Constructor	Description

Enum Constant Summary

Enum Constants
Enum Constant	Description

Method Summary

Modifier and Type	Method	Description
`abstract T`	`visitToken(Token token)`
`abstract T`	`visitMultipleTokens(MultipleTokens multipleTokens)`
`T`	`unknown(JsonValue json)`	Maps an unknown variant of Expo to a value of type T.

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Constructor Detail
- Method Detail
  - visitToken
```
 abstract T visitToken(Token token)
```
  - visitMultipleTokens
```
 abstract T visitMultipleTokens(MultipleTokens multipleTokens)
```
  - unknown
```
 T unknown(JsonValue json)
```
    Maps an unknown variant of Expo to a value of type T.
    An instance of Expo can contain an unknown variant if it was deserialized from data that doesn't match any known variant. For example, if the SDK is on an older version than the API, then the API may respond with new variants that the SDK is unaware of.