∀ {α : Type u} {β : α → Type v} [inst : BEq α] [inst_1 : Hashable α] [EquivBEq α] [LawfulHashable α]
  {m : Std.DHashMap.Internal.Raw₀ α β} {l : List ((a : α) × β a)},
  Std.DHashMap.Internal.Raw.WFImp ↑m →
    (Std.DHashMap.Internal.toListModel (↑(m.insertListₘ l)).buckets).Perm
      (Std.Internal.List.insertList (Std.DHashMap.Internal.toListModel (↑m).buckets) l)