private void appendTo(
     int tag,
     String privateCreator,
     int index,
     String valueOrItem,
     String suffix,
     StringBuilder sb) {
   sb.append("DicomAttribute[@tag=\"").append(TagUtils.toHexString(tag));
   if (privateCreator != null) sb.append("\" and @privateCreator=\"").append(privateCreator);
   if (vr != null) sb.append("\" and @vr=\"").append(vr);
   sb.append(valueOrItem).append(index + 1).append(suffix);
 }
 public void setNull(String attrPath) {
   int[] tagPath = TagUtils.parseTagPath(attrPath);
   int tag = tagPath[tagPath.length - 1];
   nestedKeys(tagPath).setNull(tag, DICT.vrOf(tag));
 }
 public void setString(String attrPath, String... ss) {
   int[] tagPath = TagUtils.parseTagPath(attrPath);
   int tag = tagPath[tagPath.length - 1];
   nestedKeys(tagPath).setString(tag, DICT.vrOf(tag), ss);
 }