private void setElementPresentation(@NotNull XValueNode node, @NotNull String value) {
    if (myParent != null && "set".equals(myParent.getType())) {
      // hide object id and '=' when showing set elements
      node.setPresentation(getValueIcon(), new XRegularValuePresentation(value, getTypeString()) {
        @NotNull
        @Override
        public String getSeparator() {
          return myName.equals(DUNDER_LEN) ? " = " : "";
        }

        @Override
        public boolean isShowName() {
          return myName.equals(DUNDER_LEN);
        }
      }, myContainer);
    }
    else {
      node.setPresentation(getValueIcon(), getTypeString(), value, myContainer);
    }
  }
private void setElementPresentation(@NotNull XValueNode node, @NotNull String value)