Method of

api/src/main/java/io/grpc/Metadata.java:682–684

Creates a key for a binary header. @param name Must contain only the valid key characters as defined in the class comment. Must end with #BINARY_HEADER_SUFFIX.

(String name, BinaryMarshaller<T> marshaller)

     *     end with {@link #BINARY_HEADER_SUFFIX}.
     */
    public static <T> Key<T> of(String name, BinaryMarshaller<T> marshaller) {
      return new BinaryKey<>(name, marshaller);
    }

    /**
     * Creates a key for a binary header, serializing to input streams.