Transaction is passed to a Function to provide the methods to read and
write data within the transaction context.
Subclassing Note: Cloud Firestore classes are not meant to be subclassed except for use in test mocks. Subclassing is not supported in production code and new SDK releases may break code that does so.
Nested Class Summary
|interface||Transaction.Function<TResult>||An interface for providing code to be executed within a transaction context.|
Public Method Summary