refactor

src/main/kotlin/blitz/func/Utils.kt

@@ -1,7 +1,7 @@
 package blitz.func
 
-import blitz.ByteBatchSequence
-import blitz.stringify
+import blitz.collections.ByteBatchSequence
+import blitz.collections.stringify
 
 fun <T> Monad<Sequence<Sequence<T>>>.flatten(): Monad<Sequence<T>> =
     bind { it.flatten() }