looks like AdFormat is different from ad type, according to
https://developers.google.com/adwords/api/docs/appendix/reports/search-query-performance-report#adformat, AdFormat can be:TEXT, IMAGE, DYNAMIC_IMAGE, FLASH, VIDEO, HTML, AUDIO, COMPOSITE, PRINT. how can I map ad type (
https://developers.google.com/adwords/api/docs/guides/ad-features#what_type_of_ad_do_you_want) to those ad format? are "ExpandedTextAds, TextAds, DynamicSearchAds, ProductAds" all belong to "Text" ad format?