Method insert

src/transform/src/redundant_join.rs:853–855

Extend the context with the `id: prov_infos` entry.

(&mut self, id: LocalId, prov_infos: Vec<ProvInfo>)

    /// Extend the context with the `id: prov_infos` entry.
    pub fn insert(&mut self, id: LocalId, prov_infos: Vec<ProvInfo>) -> Option<Vec<ProvInfo>> {
        self.lets.insert(id, prov_infos)
    }

    /// Remove the entry identified by `id` from the context.
    pub fn remove(&mut self, id: &LocalId) -> Option<Vec<ProvInfo>> {