*/
    String get(String propertyKey);

    /**
     * Is the property true?
     * @param propertyKey The key of the property which is boolean type. (NotNull)
     * @return The determination, true or false. (if not found, exception)
     * @throws ConfigPropertyNotFoundException When the property is not found.
     */
    boolean is(String propertyKey);

    /**

135D..135E    ; valid                                  # 6.0  ETHIOPIC COMBINING GEMINATION AND VOWEL LENGTH MARK..ETHIOPIC COMBINING VOWEL LENGTH MARK
135F          ; valid                                  # 4.1  ETHIOPIC COMBINING GEMINATION MARK
1360          ; valid                  ;      ; NV8    # 4.1  ETHIOPIC SECTION MARK

  Drop support of heapster in kubectl top ([#87498](https://github.com/kubernetes/kubernetes/pull/87498), [@serathius](https://github.com/serathius)) [SIG CLI]
- EndpointSlice should not contain endpoints for terminating pods ([#89056](https://github.com/kubernetes/kubernetes/pull/89056), [@andrewsykim](https://github.com/andrewsykim)) [SIG Apps and Network]