chore: import upstream snapshot with attribution

TLChat/Modules/Expression/TLExpressionManager/Store/TLDBExpressionStore.h

@@ -0,0 +1,35 @@
+//
+//  TLDBExpressionStore.h
+//  TLChat
+//
+//  Created by 李伯坤 on 16/4/9.
+//  Copyright © 2016年 李伯坤. All rights reserved.
+//
+
+#import "TLDBBaseStore.h"
+#import "TLExpressionGroupModel.h"
+
+@interface TLDBExpressionStore : TLDBBaseStore
+
+/**
+ *  添加表情包
+ */
+- (BOOL)addExpressionGroup:(TLExpressionGroupModel *)group forUid:(NSString *)uid;
+
+/**
+ *  查询所有表情包
+ */
+- (NSArray *)expressionGroupsByUid:(NSString *)uid;
+
+/**
+ *  删除表情包
+ */
+- (BOOL)deleteExpressionGroupByID:(NSString *)gid forUid:(NSString *)uid;
+
+/**
+ *  拥有某表情包的用户数
+ */
+- (NSInteger)countOfUserWhoHasExpressionGroup:(NSString *)gid;
+
+
+@end