Deque.step_acc: 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 149-151 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=149&end_line=151

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

def step_acc(~T: Data, op: E.Op<T>, st: Deque<T> & List<&2, E.Obs<T>>) -> Deque<T> & List<&2, E.Obs<T>>:
  (d, acc) = st
  record(~T, acc, step(~T, d, op))

Uses (8):
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=List
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Pair
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Sigma
  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=record
  https://jend.leeeet.dev/definition.txt?path=bend-collections-laws-math@1.0.0.0/src/containers/deque.bend&name=step
  https://jend.leeeet.dev/definition.txt?path=bend-collections-laws-math@1.0.0.0/src/containers/types/deque.bend&name=Obs
  https://jend.leeeet.dev/definition.txt?path=bend-collections-laws-math@1.0.0.0/src/containers/types/deque.bend&name=Op