https://www.playframework.com/documentation/2.4.0-M2/api/scala/play/api/libs/functional/FunctionalBuilder$CanBuild3.html
CanBuild3 - play.api.libs.functional.FunctionalBuilder.CanBuild3
CanBuild3 - play.api.libs.functional.FunctionalBuilder.CanBuild3
playapilibsfunctional