Deque.Deque.length: def of bend-kit-collections@0.1.4.1
Import: import bend-kit-collections@0.1.4.1/deque.bend as Deque
Lines 149-152 of bend-kit-collections@0.1.4.1/deque.bend: https://jend.leeeet.dev/read.txt?path=bend-kit-collections@0.1.4.1/deque.bend&start_line=149&end_line=152

import Base

def Deque.length(a, -A: Kind(a), d: Deque<a, A>) -> Nat:
  match d:
    case Deq{f, b}:
      Nat.add(List.length(a, A, f), List.length(a, A, b))

Uses (4):
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=List.length
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Nat
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Nat.add
  https://jend.leeeet.dev/definition.txt?path=bend-kit-collections@0.1.4.1/deque.bend&name=Deque