Struct MapDecorationsEvent 

pub struct MapDecorationsEvent<'a> {
    pub map: &'a MapInfo<'a>,
    pub decorations: &'a mut Vec<MapDecoration>,
}

What Hooks::map_decorations is told. Each field is that hook’s argument of the same name, described in the hook’s doc.

Fields

map: &'a MapInfo<'a>

decorations: &'a mut Vec<MapDecoration>