text: //
  // SAThreadSafeDictionary.h
  // SensorsAnalyticsSDK
  //
  // Created by yuqiang on 2021/9/14.
  // Copyright © 2021 Sensors Data Co., Ltd. All rights reserved.
  //
  // 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>
  
  NS_ASSUME_NONNULL_BEGIN
  
  
  @interface SAThreadSafeDictionary<KeyType, ObjectType> : NSObject
  
  + (SAThreadSafeDictionary *)dictionary;
  
  @property (readonly, copy) NSArray<KeyType> *allKeys;
  @property (readonly, copy) NSArray<ObjectType> *allValues;
  
  - (nullable ObjectType)objectForKeyedSubscript:(KeyType)key;
  - (void)setObject:(nullable ObjectType)obj forKeyedSubscript:(KeyType <NSCopying>)key;
  
  - (void)removeObjectForKey:(KeyType)aKey;
  - (void)enumerateKeysAndObjectsUsingBlock:(void (NS_NOESCAPE ^)(KeyType key, ObjectType obj, BOOL *stop))block;
  
  @end
  
  NS_ASSUME_NONNULL_END
  