[se-0370] use primary associated type
[se-0370] use primary associated type

apple/swift,glessard/swift,apple/swift,roambotics/swift,glessard/swift,glessard/swift,glessard/swift,roambotics/swift,apple/swift,roambotics/swift,roambotics/swift,apple/swift,glessard/swift,apple/swift,apple/swift,glessard/swift,roambotics/swift,roambotics/swift