docs: static <T> ProtofieldEncoder<T> makeNullableFieldEncoder(final ProtofieldEncoder<T> baseEncoder, final boolean isNullable) {
  		if ( isNullable ) {
  			return (ProtoStreamWriter outProtobuf, T value) -> {
  				if ( value != null ) {
  					baseEncoder.encode( outProtobuf, value );
  				}
  			};
  		}
  		else {
  			return baseEncoder;
  		}
  	}