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/*
* Copyright 2019 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>
/* The Keychain error domain */
extern NSString *const kFIRInstanceIDKeychainErrorDomain;
/*
* Wrapping the keychain operations in a serialize queue. This is to avoid keychain operation
* blocking main queue.
*/
@interface FIRInstanceIDKeychain : NSObject
/**
* FIRInstanceIDKeychain.
*
* @return A shared instance of FIRInstanceIDKeychain.
*/
+ (instancetype)sharedInstance;
/**
* Get keychain items matching the given a query.
*
* @param keychainQuery The keychain query.
*
* @return An CFTypeRef result matching the provided inputs.
*/
- (CFTypeRef)itemWithQuery:(NSDictionary *)keychainQuery;
/**
* Remove the cached items from the keychain matching the query.
*
* @param keychainQuery The keychain query.
* @param handler The callback handler which is invoked when the remove operation is
* complete, with an error if there is any.
*/
- (void)removeItemWithQuery:(NSDictionary *)keychainQuery handler:(void (^)(NSError *error))handler;
/**
* Add the item with a given query.
*
* @param keychainQuery The keychain query.
* @param handler The callback handler which is invoked when the add operation is
* complete, with an error if there is any.
*/
- (void)addItemWithQuery:(NSDictionary *)keychainQuery handler:(void (^)(NSError *))handler;
@end
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