`Type does not support the << ostream operator` on custom type about dbg-macro HOT 10 CLOSED

[build] In file included from ../sight_external_widgets.cpp:8:
[build] In file included from ../dependencies/sight-util/sight_defines.h:11:
[build] ../dependencies/dbg-macro/dbg.h:443:3: error: static_assert failed due to requirement 'detail::has_ostream_operator<const ImVec2 &>::value' "Type does not support the << ostream operator"
[build]   static_assert(detail::has_ostream_operator<const T&>::value,
[build]   ^             ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
[build] ../dependencies/dbg-macro/dbg.h:452:3: note: in instantiation of function template specialization 'dbg::pretty_print<ImVec2>' requested here
[build]   pretty_print(stream, value,
[build]   ^
[build] ../dependencies/dbg-macro/dbg.h:773:38: note: in instantiation of function template specialization 'dbg::pretty_print<ImVec2>' requested here
[build]     const bool print_expr_and_type = pretty_print(stream_value, ref);
[build]                                      ^
[build] ../dependencies/dbg-macro/dbg.h:765:12: note: in instantiation of function template specialization 'dbg::DebugOutput::print_impl<ImVec2 &>' requested here
[build]     return print_impl(exprs.begin(), types.begin(), std::forward<T>(values)...);
[build]            ^
[build] ../sight_external_widgets.cpp:196:9: note: in instantiation of function template specialization 'dbg::DebugOutput::print<ImVec2 &>' requested here
[build]         dbg(pos);             //  Type does not support the << ostream operator
[build]         ^
[build] ../dependencies/dbg-macro/dbg.h:893:8: note: expanded from macro 'dbg'
[build]       .print({DBG_MAP(DBG_STRINGIFY, __VA_ARGS__)}, \
[build]        ^
[build] 1 error generated.
[build] ninja: build stopped: subcommand failed.
[build] Build finished with exit code 1