ClickTags: Click tags of the creative. For ENHANCED_BANNER, FLASH_INPAGE, and HTML5_BANNER creatives, this is a subset of detected click tags for the assets associated with this creative. After creating a flash asset, detected click tags will be returned in the creativeAssetMetadata. When inserting the creative, populate the creative clickTags field using the creativeAssetMetadata.clickTags field. For ENHANCED_IMAGE creatives, there should be exactly one entry in this list for each image creative asset. A click tag is matched with a corresponding creative asset by matching the clickTag.name field with the creativeAsset.assetIdentifier.name field. Applicable to the following creative types: ENHANCED_IMAGE, FLASH_INPAGE HTML5_BANNER. Applicable to ENHANCED_BANNER when the primary asset type is not HTML_IMAGE.