Function gio_sys::g_file_set_attribute

pub unsafe extern "C" fn g_file_set_attribute(
    file: *mut GFile, 
    attribute: *const c_char, 
    type_: GFileAttributeType, 
    value_p: gpointer, 
    flags: GFileQueryInfoFlags, 
    cancellable: *mut GCancellable, 
    error: *mut *mut GError
) -> gboolean