Method create

api/src/main/java/io/grpc/CallOptions.java:373–376

Factory method for creating instances of Key. The default value of the key is null. @param debugString a debug string that describes this key. @param Key type @return Key object @since 1.13.0

(String debugString)

     * @since 1.13.0
     */
    public static <T> Key<T> create(String debugString) {
      Preconditions.checkNotNull(debugString, "debugString");
      return new Key<>(debugString, /*defaultValue=*/ null);
    }

    /**
     * Factory method for creating instances of {@link Key}.