This is an example of delegation in ocaps.
Delegation is probably the easiest thing in capabiities to understand, as you're passing a reference to another object, either by passing it as a parameter, or through direct assignment.
Note that assigning a capability to a singleton object or to a thread local is not delegation, as you are exposing the capability globally rather than to a specific target.
Delegation is often combined with @ref:revocation, so that the delegated access to the capability can be revoked as necessary.
You can read @ref:Managing Capabilities in the guide for more information.
@@snip Delegation.scala { #delegation }