text: //
  //  MPNativeAdConstants.h
  //  Copyright (c) 2014 MoPub. All rights reserved.
  //
  
  #import <Foundation/Foundation.h>
  #import <CoreGraphics/CoreGraphics.h>
  
  extern const CGFloat kUniversalStarRatingScale;
  extern const CGFloat kStarRatingMaxValue;
  extern const CGFloat kStarRatingMinValue;
  extern const NSTimeInterval kDefaultRequiredSecondsForImpression;
  
  /** @name MPNativeAd asset keys */
  
  extern NSString *const kAdTitleKey;
  extern NSString *const kAdTextKey;
  extern NSString *const kAdIconImageKey;
  extern NSString *const kAdMainImageKey;
  extern NSString *const kAdCTATextKey;
  extern NSString *const kAdStarRatingKey;
  extern NSString *const kVideoConfigKey;
  extern NSString *const kVASTVideoKey;
  extern NSString *const kNativeAdConfigKey;
  extern NSString *const kAdDAAIconImageKey;
  extern NSString *const kAdDAAIconUIImageKey;
  extern NSString *const kDAAIconImageName;
  extern NSString *const kDAAIconTapDestinationURL;
  extern NSString *const kImpressionTrackerURLsKey;
  extern NSString *const kDefaultActionURLKey;
  extern NSString *const kClickTrackerURLKey;
  extern NSString *const kLogEventRequestPropertiesKey;
  