Latest version of com.google.apis:google-api-services-gmail
https://javadoc.io/doc/com.google.apis/google-api-services-gmail
Current version v1-rev20210301-1.31.0
https://javadoc.io/doc/com.google.apis/google-api-services-gmail/v1-rev20210301-1.31.0
package-list path (used for javadoc generation -link option)
https://javadoc.io/doc/com.google.apis/google-api-services-gmail/v1-rev20210301-1.31.0/package-list