//
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// CSJAdViewWitnessChecker.h
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// CSJAdSDK
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//
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// Created by chenren on 21/05/2017.
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// Copyright © 2017 bytedance. All rights reserved.
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//
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#import <Foundation/Foundation.h>
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#import "CSJAdSDKDefines+Private.h"
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#import "CSJViewTracker.h"
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@interface CSJAdViewWitnessChecker : NSObject
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+ (instancetype)sharedInstance;
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+ (NSTimeInterval)getWitnessTimeForAd:(id<CSJAd>)materialMeta;
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+ (void)setWitnessTimeForAd:(id<CSJAd>)materialMeta;
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- (void)removeAd:(id<CSJAd>)ad;
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- (void)addViewTracker:(id<CSJViewTracker>)tracker;
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@end
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