diff --git a/src/index.ts b/src/index.ts
index 25e7bbb..acfebed 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -12,6 +12,10 @@ export type Iterable<T> = {
     readonly [Symbol.iterator]: () => Iterator<T>;
 }
 
+import { IterableInternal } from "./iterableInternalType";
+
+export type Iterable<T> = IterableInternal<T>;
+
 export type IterableEx<T> = Iterable<T> & {
     /**
      * The function returns an iterator of a this container own enumerable number-keyed value [key, value] pairs.
diff --git a/src/iterableInternalType.ts b/src/iterableInternalType.ts
new file mode 100644
index 0000000..bea644d
--- /dev/null
+++ b/src/iterableInternalType.ts
@@ -0,0 +1 @@
+export type IterableInternal<T> = Iterable<T>;