syntax = "proto2"; package pb; message Strings { optional string a = 1; optional string b = 2; optional string c = 3; optional string d = 4; repeated string s = 5; repeated string s2 = 6; repeated string s3 = 7; } message Strings2 { repeated string a = 1; repeated string b = 2; repeated string c = 3; optional string cnst = 4; }