private void addAs() {
    extend(
      CompletionType.BASIC, psiElement()
      .withLanguage(PythonLanguage.getInstance())
      .andOr(IN_IMPORT_AFTER_REF, IN_WITH_AFTER_REF, IN_EXCEPT_AFTER_REF)
      .andNot(AFTER_QUALIFIER)
      .andNot(IN_COMMENT)
      ,
      new PyKeywordCompletionProvider(PyNames.AS)
    );
  }
private void addAs()