Deque.peek_back: def of bend-collections-laws-math@1.0.0.0
Import: import bend-collections-laws-math@1.0.0.0/src/containers/deque.bend as Deque
Lines 105-106 of bend-collections-laws-math@1.0.0.0/src/containers/deque.bend: https://jend.leeeet.dev/read.txt?path=bend-collections-laws-math@1.0.0.0/src/containers/deque.bend&start_line=105&end_line=106

import Base
import bend-collections-laws-math@1.0.0.0/src/containers/types/deque.bend as E

def peek_back(~T: Data, d: Deque<T>) -> Deque<T> & Result<&2, &2, E.Error, T>:
  peek_back_ready(~T, ready_back(~T, d))

Uses (6):
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Pair
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Result
  https://jend.leeeet.dev/definition.txt?path=bend-collections-laws-math@1.0.0.0/src/containers/deque.bend&name=Deque
  https://jend.leeeet.dev/definition.txt?path=bend-collections-laws-math@1.0.0.0/src/containers/deque.bend&name=peek_back_ready
  https://jend.leeeet.dev/definition.txt?path=bend-collections-laws-math@1.0.0.0/src/containers/deque.bend&name=ready_back
  https://jend.leeeet.dev/definition.txt?path=bend-collections-laws-math@1.0.0.0/src/containers/types/deque.bend&name=Error