| FirebaseFunctions | FirebaseFunctions lets you call Cloud Functions for Firebase. |
| FirebaseFunctionsException | The class for all Exceptions thrown by FirebaseFunctions. |
| FirebaseFunctionsException.Code | The set of error status codes that can be returned from a Callable HTTPS tigger. |
| HttpsCallableReference | A reference to a particular Callable HTTPS trigger in Cloud Functions. |
| HttpsCallableResult | The result of calling a HttpsCallableReference function. |