Remove support for Protobuf WrapperTypes (sunset since Google Ads API V6) (#830)
Remove support for Protobuf WrapperTypes (sunset since Google Ads API V6) (#830)

Change-Id: I6b9244d5cc26a9ddbd87d211b4c9905c8749af39

Co-authored-by: pierrick <df474784b32dd401bcc15bd466f2f639c8ded6ef@google.com>
googleads/google-ads-php,googleads/google-ads-php