/// Register all `Descriptor`s supported by the parameterized type.
Register all `Descriptor`s supported by the parameterized type.
Register all ` Descriptor ` s supported by the parameterized type .
pub fn register_all<Q: QueryDescriptor>(&mut self) {
        for descriptor in Q::query() {
            self.register(descriptor);
        }
    }
pub fn register_all < Q : QueryDescriptor > ( & mut self ) { for descriptor in Q :: query ( ) { self . register ( descriptor ) ; } }
Register all `Descriptor`s supported by the parameterized type.
Register all ` Descriptor ` s supported by the parameterized type .
&mut self