pub type BoxPm<'a> = Box<dyn Pm + Send + 'a>;
An owned, dynamically typed Pm.
Pm
struct BoxPm<'a>(Unique<dyn Pm + Send + 'a>, Global);
0: Unique<dyn Pm + Send + 'a>
1: Global
Generates the Pm instance according it’s name, feeding it with the current Config.
Config