pub unsafe extern "C" fn gegl_tile_backend_command(
backend: *mut GeglTileBackend,
command: GeglTileCommand,
x: c_int,
y: c_int,
z: c_int,
data: gpointer,
) -> gpointerpub unsafe extern "C" fn gegl_tile_backend_command(
backend: *mut GeglTileBackend,
command: GeglTileCommand,
x: c_int,
y: c_int,
z: c_int,
data: gpointer,
) -> gpointer