expose additional types

Author: nonergodic

src/index.ts

@@ -1,4 +1,7 @@
 export type {
+  Item,
+  NamedItem,
+  ProperLayout,
   Layout,
   DeriveType,
   FixedConversion,

src/layout.ts

@@ -143,7 +143,7 @@ export type BytesItem =
   LengthPrefixedLayoutBytes;
 export type ArrayItem = FixedLengthArray | LengthPrefixedArray | RemainderArray;
 export type Item = NumItem | BytesItem | ArrayItem | SwitchItem;
-type NamedItem = Item & { readonly name: string };
+export type NamedItem = Item & { readonly name: string };
 export type ProperLayout = readonly NamedItem[];
 export type Layout = Item | ProperLayout;