'string', 'additional_image_index' => 'int', 'app_link_spec' => 'AdCreativeLinkDataAppLinkSpec', 'attachment_style' => 'string', 'automated_product_tags' => 'bool', 'boosted_product_set_id' => 'string', 'branded_content_shared_to_sponsor_status' => 'string', 'branded_content_sponsor_page_id' => 'string', 'call_to_action' => 'AdCreativeLinkDataCallToAction', 'caption' => 'string', 'child_attachments' => 'list', 'collection_thumbnails' => 'list', 'customization_rules_spec' => 'list', 'description' => 'string', 'event_id' => 'string', 'force_single_link' => 'bool', 'format_option' => 'FormatOption', 'image_crops' => 'AdsImageCrops', 'image_hash' => 'string', 'image_layer_specs' => 'list', 'image_overlay_spec' => 'AdCreativeLinkDataImageOverlaySpec', 'is_local_expansion' => 'bool', 'link' => 'string', 'message' => 'string', 'multi_share_end_card' => 'bool', 'multi_share_optimized' => 'bool', 'name' => 'string', 'offer_id' => 'string', 'page_welcome_message' => 'string', 'picture' => 'string', 'post_click_configuration' => 'AdCreativePostClickConfiguration', 'preferred_image_tags' => 'list', 'preferred_video_tags' => 'list', 'retailer_item_ids' => 'list', 'show_multiple_images' => 'bool', 'static_fallback_spec' => 'AdCreativeStaticFallbackSpec', 'use_flexible_image_aspect_ratio' => 'bool', ); } }