module a {
  namespace "a";
  prefix a;

  import b{
    prefix b;
  }

  typedef HexOffset {
    type string;
  }

  grouping group {
    container action {
      config false;
      container register {
        config false;
        list location {
          key "location";
          config false;
          leaf location {
            type string;
          }
          b:action "write" {
            input {
              leaf reg-addr {
                type HexOffset;
                mandatory true;
              }
            }
            output {
              leaf result {
                type string;
              }
            }
          }
        }
      }
    }
  }
}