public static @NotNull String psiTreeToString(@NotNull PsiElement element, boolean showWhitespaces) {
    ASTNode node = SourceTreeToPsiMap.psiElementToTree(element);
    assert node != null : element;
    return treeToString(node, showWhitespaces);
  }
public static @NotNull String psiTreeToString(@NotNull PsiElement element, boolean showWhitespaces)