update .d.ts and mjs

index.d.ts

@@ -2,6 +2,7 @@ declare const camaro: {
     prettyPrint(xml: string, opts?: { indentSize: number }): Promise<string>;
     toJson(xml: string): Promise<any>;
     transform(xml: string, template: object): Promise<any>;
+    destroy(): Promise<any>;
 };
 
 export = camaro;

index.mjs

@@ -4,3 +4,4 @@ export default mod;
 export const transform = mod.transform;
 export const toJson = mod.toJson;
 export const prettyPrint = mod.prettyPrint;
+export const destroy = mod.destroy;