@Override
  @Nullable
  @NonNls
  public String getHelpID(final PsiElement element) {
    if (element instanceof PsiField){
      return HelpID.RENAME_FIELD;
    }
    else if (element instanceof PsiLocalVariable){
      return HelpID.RENAME_VARIABLE;
    }
    else if (element instanceof PsiParameter){
      return HelpID.RENAME_PARAMETER;
    }
    return null;
  }
@Override
  @Nullable
  @NonNls
  public String getHelpID(final PsiElement element)