@ApiStatus.Experimental
  @NotNull
  public static PsiElement createTableSeparator(@NotNull Project project) {
    final var content = "|    |\n|----|";
    final var file = createFile(project, content);
    return Objects.requireNonNull(file.findElementAt(0));
  }
@ApiStatus.Experimental
  @NotNull
  public static PsiElement createTableSeparator(@NotNull Project project)