def step_p
import bend-collections@1.0.0.0/src/containers/internal/dlist_storage.bend as DlistStorageimport Base
323def step_p(~T: Data, vals: Array<Maybe<&2, T>>, acc: List<&2, T>, r: Array<U32> & U32) -> Cur<T>:
324 (prevs, p) = r
325 C{vals, prevs, acc, p}