fix: add ioeither

Signed-off-by: Dr. Carsten Leue <carsten.leue@de.ibm.com>

io/traverse.go

@@ -0,0 +1,35 @@
+package io
+
+import (
+	G "github.com/ibm/fp-go/io/generic"
+)
+
+func MonadTraverseArray[A, B any](tas []A, f func(A) IO[B]) IO[[]B] {
+	return G.MonadTraverseArray[IO[B], IO[[]B]](tas, f)
+}
+
+// TraverseArray applies a function returning an [IO] to all elements in an array and the
+// transforms this into an [IO] of that array
+func TraverseArray[A, B any](f func(A) IO[B]) func([]A) IO[[]B] {
+	return G.TraverseArray[IO[B], IO[[]B], []A](f)
+}
+
+// SequenceArray converts an array of [IO] to an [IO] of an array
+func SequenceArray[A any](tas []IO[A]) IO[[]A] {
+	return G.SequenceArray[IO[A], IO[[]A]](tas)
+}
+
+func MonadTraverseRecord[K comparable, A, B any](tas map[K]A, f func(A) IO[B]) IO[map[K]B] {
+	return G.MonadTraverseRecord[IO[B], IO[map[K]B]](tas, f)
+}
+
+// TraverseArray applies a function returning an [IO] to all elements in a record and the
+// transforms this into an [IO] of that record
+func TraverseRecord[K comparable, A, B any](f func(A) IO[B]) func(map[K]A) IO[map[K]B] {
+	return G.TraverseRecord[IO[B], IO[map[K]B], map[K]A](f)
+}
+
+// SequenceRecord converts a record of [IO] to an [IO] of a record
+func SequenceRecord[K comparable, A any](tas map[K]IO[A]) IO[map[K]A] {
+	return G.SequenceRecord[IO[A], IO[map[K]A]](tas)
+}