boost::gil::make_writer

template<
    typename Device,
    typename FormatTag>
get_writer<Device, FormatTag>::type
make_writer(
    Device& file,
    FormatTag const&)
requires mp11::mp_and
        <
            typename detail::is_adaptable_output_device<FormatTag, Device>::type,
            is_format_tag<FormatTag>
        >::value;