public static boolean marker_var(PsiBuilder b, int l) {
    if (!recursion_guard_(b, l, "marker_var")) return false;
    boolean r;
    Marker m = enter_section_(b, l, _NONE_, MARKER_VAR, "<marker var>");
    r = consumeToken(b, ENV_VAR);
    if (!r) r = python_str(b, l + 1);
    exit_section_(b, l, m, r, false, null);
    return r;
  }
public static boolean marker_var(PsiBuilder b, int l)