pub trait Relation {
// Required methods
fn parents(&self) -> HashSet<Uuid>;
fn children(&self) -> HashSet<Uuid>;
fn sources(&self) -> HashSet<Uuid>;
}
pub trait Relation {
// Required methods
fn parents(&self) -> HashSet<Uuid>;
fn children(&self) -> HashSet<Uuid>;
fn sources(&self) -> HashSet<Uuid>;
}