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-rw-r--r--Firestore/core/src/firebase/firestore/model/types.h12
1 files changed, 11 insertions, 1 deletions
diff --git a/Firestore/core/src/firebase/firestore/model/types.h b/Firestore/core/src/firebase/firestore/model/types.h
index 4f71829..fc1b196 100644
--- a/Firestore/core/src/firebase/firestore/model/types.h
+++ b/Firestore/core/src/firebase/firestore/model/types.h
@@ -23,7 +23,17 @@ namespace firebase {
namespace firestore {
namespace model {
-typedef int32_t TargetId;
+/**
+ * BatchId is a locally assigned identifier for a batch of mutations that have
+ * been applied by the user but have not yet been fully committed at the server.
+ */
+using BatchId = int32_t;
+
+/**
+ * TargetId is a stable numeric identifier assigned for a specific query
+ * applied.
+ */
+using TargetId = int32_t;
} // namespace model
} // namespace firestore