private static @Nullable String getQualifierName(@NotNull PyImportElement importElement) {
      String asName = importElement.getAsName();
      if (asName != null) {
        return asName;
      }
      QualifiedName importedQName = importElement.getImportedQName();
      if (importedQName != null) {
        return importedQName.toString();
      }
      return null;
    }
private static @Nullable String getQualifierName(@NotNull PyImportElement importElement)