fix: typedef

src/array-to-list.d.ts

@@ -3,4 +3,4 @@
  *
  * @param input
  */
-declare function arrayToList(input: any): string;
+export declare function arrayToList(input: any): string;

src/errorf.d.ts

@@ -1,7 +1,7 @@
 /**
  * Errorf.
  */
-declare class Errorf extends Error {
+export declare class Errorf extends Error {
   /**
    * Constructor.
    *

src/format.d.ts

@@ -13,4 +13,4 @@
  * @param pattern
  * @param args
  */
-declare function format(pattern: string, ...args: any[]): string;
+export declare function format(pattern: string, ...args: any[]): string;

src/index.d.ts

@@ -1,4 +1,4 @@
-/// <reference path="./format.d.ts"/>
-/// <reference path="./errorf.d.ts"/>
-/// <reference path="./array-to-list.d.ts"/>
-/// <reference path="./value-to-string.d.ts"/>
+export * from './format';
+export * from './errorf';
+export * from './array-to-list';
+export * from './value-to-string';

src/value-to-string.d.ts

@@ -3,4 +3,4 @@
  *
  * @param input
  */
-declare function valueToString(input: any): string;
+export declare function valueToString(input: any): string;