private static @Nullable PyExpression getFormatCallQualifier(@NotNull PyCallExpression element) {
    final PyExpression callee = element.getCallee();
    if (callee instanceof PyQualifiedExpression qualifiedExpr) {
      final PyExpression qualifier = qualifiedExpr.getQualifier();
      if (qualifier != null && PyNames.FORMAT.equals(qualifiedExpr.getReferencedName())) {
        return qualifier;
      }
    }
    return null;
  }
private static @Nullable PyExpression getFormatCallQualifier(@NotNull PyCallExpression element)