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diff --git a/Firestore/Source/Public/FIRWriteBatch.h b/Firestore/Source/Public/FIRWriteBatch.h
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+++ b/Firestore/Source/Public/FIRWriteBatch.h
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+/*
+ * Copyright 2017 Google
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#import <Foundation/Foundation.h>
+
+#import "FIRFirestoreSwiftNameSupport.h"
+
+NS_ASSUME_NONNULL_BEGIN
+
+@class FIRDocumentReference;
+@class FIRSetOptions;
+
+/**
+ * A write batch is used to perform multiple writes as a single atomic unit.
+ *
+ * A WriteBatch object can be acquired by calling [FIRFirestore batch]. It provides methods for
+ * adding writes to the write batch. None of the writes will be committed (or visible locally)
+ * until [FIRWriteBatch commit] is called.
+ *
+ * Unlike transactions, write batches are persisted offline and therefore are preferable when you
+ * don't need to condition your writes on read data.
+ */
+FIR_SWIFT_NAME(WriteBatch)
+@interface FIRWriteBatch : NSObject
+
+/** :nodoc: */
+- (id)init __attribute__((unavailable("FIRWriteBatch cannot be created directly.")));
+
+/**
+ * Writes to the document referred to by `document`. If the document doesn't yet exist,
+ * this method creates it and then sets the data. If the document exists, this method overwrites
+ * the document data with the new values.
+ *
+ * @param data An `NSDictionary` that contains the fields and data to write to the document.
+ * @param document A reference to the document whose data should be overwritten.
+ * @return This `FIRWriteBatch` instance. Used for chaining method calls.
+ */
+// clang-format off
+- (FIRWriteBatch *)setData:(NSDictionary<NSString *, id> *)data
+               forDocument:(FIRDocumentReference *)document FIR_SWIFT_NAME(setData(_:forDocument:));
+// clang-format on
+
+/**
+ * Writes to the document referred to by `document`. If the document doesn't yet exist,
+ * this method creates it and then sets the data. If you pass `FIRSetOptions`, the provided data
+ * will be merged into an existing document.
+ *
+ * @param data An `NSDictionary` that contains the fields and data to write to the document.
+ * @param document A reference to the document whose data should be overwritten.
+ * @param options A `FIRSetOptions` used to configure the set behavior.
+ * @return This `FIRWriteBatch` instance. Used for chaining method calls.
+ */
+// clang-format off
+- (FIRWriteBatch *)setData:(NSDictionary<NSString *, id> *)data
+               forDocument:(FIRDocumentReference *)document
+                   options:(FIRSetOptions *)options
+    FIR_SWIFT_NAME(setData(_:forDocument:options:));
+// clang-format on
+
+/**
+ * Updates fields in the document referred to by `document`.
+ * If document does not exist, the write batch will fail.
+ *
+ * @param fields An `NSDictionary` containing the fields (expressed as an `NSString` or
+ * `FIRFieldPath`) and values with which to update the document.
+ * @param document A reference to the document whose data should be updated.
+ * @return This `FIRWriteBatch` instance. Used for chaining method calls.
+ */
+// clang-format off
+- (FIRWriteBatch *)updateData:(NSDictionary<id, id> *)fields
+                  forDocument:(FIRDocumentReference *)document
+    FIR_SWIFT_NAME(updateData(_:forDocument:));
+// clang-format on
+
+/**
+ * Deletes the document referred to by `document`.
+ *
+ * @param document A reference to the document that should be deleted.
+ * @return This `FIRWriteBatch` instance. Used for chaining method calls.
+ */
+- (FIRWriteBatch *)deleteDocument:(FIRDocumentReference *)document
+    FIR_SWIFT_NAME(deleteDocument(_:));
+
+/**
+ * Commits all of the writes in this write batch as a single atomic unit.
+ *
+ * @param completion A block to be called once all of the writes in the batch have been
+ * successfully written to the backend as an atomic unit.
+ */
+- (void)commitWithCompletion:(void (^)(NSError *_Nullable error))completion;
+
+@end
+
+NS_ASSUME_NONNULL_END