Trait Model 

pub trait Model:
    Send
    + Sync
    + 'static { }

What a device model has to be, gathering in one bound everything a server needs of it: it is shared between the threads serving the requests, and it lives as long as the class it belongs to, which is as long as the server serving it.

Every such type is a model, there being nothing to implement: this is the bound the definitions and the devices are written against rather than a trait a model opts into.

Dyn Compatibility

This trait is dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety".

Implementors

impl<T: Send + Sync + 'static> Model for T