std::formatter<proxy_indirect_accessor>::format()template <class OutIt>
OutIt format(const pro::proxy_indirect_accessor<F>& ia, basic_format_context<OutIt, CharT>& fc) const;
Formats the managed object o represented by ia with std::formatter<std::decay_t<decltype(o)>, CharT> according to the specifiers stored in *this, writes the output to fc.out() and returns an end iterator of the output range.