Official tokio_timer example does not compile

Maybe its my fault, but the example from tokio_timer - Rust doesn't compile with error:

xxx/timer$ cargo build
Updating index
Compiling futures v0.1.25
Compiling crossbeam-utils v0.5.0
Compiling slab v0.4.1
Compiling tokio-executor v0.1.5
Compiling tokio-timer v0.2.7
Compiling timer v0.1.0 (/home/mirco/Algorithms/timer)
error[E0599]: no method named sleep found for type tokio_timer::Timer<tokio_executor::park::ParkThread> in the current scope
--> src/
15 | let sleep = timer.sleep(Duration::from_millis(500));
| ^^^^^

error: aborting due to previous error

For more information about this error, try rustc --explain E0599.
error: Could not compile timer.

To learn more, run the command again with --verbose.


tokio-timer = "0.2.7"
futures = "0.1"

It looks like the published version of tokio-timer doesn't contain that function. You can see the documentation for the current release here: tokio_timer - Rust