Function xcb::ffi::xkb::xcb_xkb_use_extension_unchecked

pub unsafe extern "C" fn xcb_xkb_use_extension_unchecked(
    c: *mut xcb_connection_t, 
    wantedMajor: u16, 
    wantedMinor: u16
) -> xcb_xkb_use_extension_cookie_t