BinaryHeap.length: def of bend-collections@1.0.0.0
Import: import bend-collections@1.0.0.0/src/containers/binary_heap.bend as BinaryHeap
Lines 57-59 of bend-collections@1.0.0.0/src/containers/binary_heap.bend: https://jend.leeeet.dev/read.txt?path=bend-collections@1.0.0.0/src/containers/binary_heap.bend&start_line=57&end_line=59

import Base

def length(~A: Data, h: Heap<A>) -> Heap<A> & Nat:
  BH{+size, n, depth, cap, arr} = h
  (BH{size, n, depth, cap, arr}, size)

Uses (4):
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Nat
  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@1.0.0.0/src/containers/binary_heap.bend&name=Heap