pub unsafe extern "C" fn igDockSpace(
id: ImGuiID,
size: ImVec2,
flags: ImGuiDockNodeFlags,
window_class: *const ImGuiWindowClass,
) -> ImGuiIDpub unsafe extern "C" fn igDockSpace(
id: ImGuiID,
size: ImVec2,
flags: ImGuiDockNodeFlags,
window_class: *const ImGuiWindowClass,
) -> ImGuiID