feat(types): Union

src/types/index.ts

@@ -51,3 +51,4 @@ export type { default as Path } from './path.type'
 export type { default as PickByType } from './pick-by-type.type'
 export type { default as Primitive } from './primitive.type'
 export type { default as Split } from './split.type'
+export type { default as Union } from './union.type'

src/types/union.type.ts

@@ -0,0 +1,21 @@
+import type ObjectPlain from './object-plain.type'
+
+/**
+ * @file Type Definitions - Union
+ * @module tutils/types/Union
+ */
+
+/**
+ * Allow either type `T1` or `T2`.
+ *
+ * @template T1 - Object type 1
+ * @template T2 - Object type 2
+ *
+ * @see https://www.typescriptlang.org/docs/handbook/unions-and-intersections.html#union-types
+ */
+type Union<
+  T1 extends ObjectPlain = ObjectPlain,
+  T2 extends ObjectPlain = ObjectPlain
+> = T1 & T2
+
+export default Union