A wrapper proto presenting all supported resources. Only the resource of the change_resource_type will be set.

[Proto definition ![GitHub](https://developers.google.com/site-assets/logo-github.svg)](https://github.com/googleapis/googleapis/blob/master/google/ads/googleads/v26/resources/change_event.proto)

| Fields ||
|---|---|
| ## `ad` | `https://developers.google.com/google-ads/api/reference/rpc/v26/Ad` Output only. Set if change_resource_type == AD. |
| ## `ad_group` | `https://developers.google.com/google-ads/api/reference/rpc/v26/AdGroup` Output only. Set if change_resource_type == AD_GROUP. |
| ## `ad_group_ad` | `https://developers.google.com/google-ads/api/reference/rpc/v26/AdGroupAd` Output only. Set if change_resource_type == AD_GROUP_AD. |
| ## `ad_group_asset` | `https://developers.google.com/google-ads/api/reference/rpc/v26/AdGroupAsset` Output only. Set if change_resource_type == AD_GROUP_ASSET. |
| ## `ad_group_bid_modifier` | `https://developers.google.com/google-ads/api/reference/rpc/v26/AdGroupBidModifier` Output only. Set if change_resource_type == AD_GROUP_BID_MODIFIER. |
| ## `ad_group_criterion` | `https://developers.google.com/google-ads/api/reference/rpc/v26/AdGroupCriterion` Output only. Set if change_resource_type == AD_GROUP_CRITERION. |
| ## `asset` | `https://developers.google.com/google-ads/api/reference/rpc/v26/Asset` Output only. Set if change_resource_type == ASSET. |
| ## `asset_set` | `https://developers.google.com/google-ads/api/reference/rpc/v26/AssetSet` Output only. Set if change_resource_type == ASSET_SET. |
| ## `asset_set_asset` | `https://developers.google.com/google-ads/api/reference/rpc/v26/AssetSetAsset` Output only. Set if change_resource_type == ASSET_SET_ASSET. |
| ## `campaign` | `https://developers.google.com/google-ads/api/reference/rpc/v26/Campaign` Output only. Set if change_resource_type == CAMPAIGN. |
| ## `campaign_asset` | `https://developers.google.com/google-ads/api/reference/rpc/v26/CampaignAsset` Output only. Set if change_resource_type == CAMPAIGN_ASSET. |
| ## `campaign_asset_set` | `https://developers.google.com/google-ads/api/reference/rpc/v26/CampaignAssetSet` Output only. Set if change_resource_type == CAMPAIGN_ASSET_SET. |
| ## `campaign_budget` | `https://developers.google.com/google-ads/api/reference/rpc/v26/CampaignBudget` Output only. Set if change_resource_type == CAMPAIGN_BUDGET. |
| ## `campaign_criterion` | `https://developers.google.com/google-ads/api/reference/rpc/v26/CampaignCriterion` Output only. Set if change_resource_type == CAMPAIGN_CRITERION. |
| ## `customer_asset` | `https://developers.google.com/google-ads/api/reference/rpc/v26/CustomerAsset` Output only. Set if change_resource_type == CUSTOMER_ASSET. |