iter_util

func Filter[T any](i1 iter.Seq[T], f func(T) bool) iter.Seq[T]

func FlatMap[T1 any, T2 any](i1 iter.Seq[T1], f func(T1) iter.Seq[T2]) iter.Seq[T2]

func Fold[T any](i1 iter.Seq[T], init T, f func(T, T) T) T

func FromSlice[T any](s []T) iter.Seq[T]

func Map[T1 any, T2 any](i1 iter.Seq[T1], f func(T1) T2) iter.Seq[T2]

func ToSlice[T any](i1 iter.Seq[T]) []T