diff --git a/internal/utils.go b/internal/utils.go
new file mode 100644
index 0000000..5891772
--- /dev/null
+++ b/internal/utils.go
@@ -0,0 +1,11 @@
+package noid
+
+type Counter struct {
+    top   int
+    value int
+}
+
+func NewCounter(top, value int) *Counter {
+    c := Counter{top: top, value: value}
+    return &c
+}