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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 "Firestore/third_party/Immutable/FSTImmutableSortedDictionary.h"
@class FSTDocumentKey;
@class FSTSnapshotVersion;
NS_ASSUME_NONNULL_BEGIN
/** A map of key to version number. */
typedef FSTImmutableSortedDictionary<FSTDocumentKey *, FSTSnapshotVersion *>
FSTDocumentVersionDictionary;
/**
* Extension to FSTImmutableSortedDictionary that allows natural construction of
* FSTDocumentVersionDictionary.
*/
@interface FSTImmutableSortedDictionary (FSTDocumentVersionDictionary)
+ (instancetype)documentVersionDictionary;
@end
NS_ASSUME_NONNULL_END
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