code: public Filters withKeyUsage(KeyUsageName... keyUsage) {
          java.util.ArrayList<String> keyUsageCopy = new java.util.ArrayList<String>(keyUsage.length);
          for (KeyUsageName value : keyUsage) {
              keyUsageCopy.add(value.toString());
          }
          if (getKeyUsage() == null) {
              setKeyUsage(keyUsageCopy);
          } else {
              getKeyUsage().addAll(keyUsageCopy);
          }
          return this;
      }
docs: <p>
  Specify one or more <a>KeyUsage</a> extension values.
  </p>
  
  @param keyUsage
  Specify one or more <a>KeyUsage</a> extension values.
  @return Returns a reference to this object so that method calls can be chained together.
  @see KeyUsageName