Merge pull request #26463 from sbilstein/add-as-text-to-prismic-dom

Add a type for PrismicDOM.RichText text function

types/prismic-dom/index.d.ts

@@ -1,10 +1,12 @@
 // Type definitions for prismic-dom 2.0
 // Project: https://github.com/prismicio/prismic-dom#readme
 // Definitions by: Nick Whyte <https://github.com/nickw444>
+//                 Siggy Bilstein <https://github.com/sbilstein>
 // Definitions: https://github.com/DefinitelyTyped/DefinitelyTyped
 
 interface RichText {
     asHtml(richText: any, linkResolver?: (doc: any) => string): string;
+    asText(richText: any,  joinString?: string): string;
 }
 
 export const RichText: RichText;