Function gio_2_0_sys::g_file_mount_enclosing_volume

pub unsafe extern "C" fn g_file_mount_enclosing_volume(
    location: *mut GFile, 
    flags: GMountMountFlags, 
    mount_operation: *mut GMountOperation, 
    cancellable: *mut GCancellable, 
    callback: Option<GAsyncReadyCallback>, 
    user_data: gpointer
)