Represents a Cloud Firestore database and is the entry point for all Cloud Firestore operations.
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.
Public Method Summary
Creates a write batch, used for performing multiple writes as a single atomic operation.
Clears the persistent storage, including pending writes and cached documents.