You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: space_view_class_registry.rs
    path of file: ./repos/rerun/crates/re_viewer_context/src/space_view
    
    the code of the file until where you have to start completion: use ahash::{HashMap, HashSet};
use re_data_store::DataStore;

use crate::{
    App
    
    pub fn display_name(&self, name: &SpaceViewClassIdentifier) -> &'static str {
        self.space_view_classes
            .get(name)
            .map_or("<unknown space view class>", |boxed| {
                boxed.class.display_name()
            })
    }