interface PKCEClientCredentials
implements ClientCredentials
import { type PKCEClientCredentials } from "https://deno.land/x/oauth2_server@0.12.0/grants/authorization_code.ts";
x/oauth2_server/grants/authorization_code.ts>PKCEClientCredentials
import { type PKCEClientCredentials } from "https://deno.land/x/oauth2_server@0.12.0/grants/authorization_code.ts";