public java.lang.String getInstance() {
    java.lang.Object ref = instance_;
    if (ref instanceof java.lang.String) {
      return (java.lang.String) ref;
    } else {
      com.google.protobuf.ByteString bs = 
          (com.google.protobuf.ByteString) ref;
      java.lang.String s = bs.toStringUtf8();
      if (bs.isValidUtf8()) {
        instance_ = s;
      }
      return s;
    }
  }
public java . lang . String getInstance ( ) { java . lang . Object ref = instance_ ; if ( ref instanceof java . lang . String ) { return ( java . lang . String ) ref ; } else { com . google . protobuf . ByteString bs = ( com . google . protobuf . ByteString ) ref ; java . lang . String s = bs . toStringUtf8 ( ) ; if ( bs . isValidUtf8 ( ) ) { instance_ = s ; } return s ; } }
<code>optional string instance = 1;</code>