docs: public UserPoolClientType withAllowedOAuthScopes(String... allowedOAuthScopes) {
          if (this.allowedOAuthScopes == null) {
              setAllowedOAuthScopes(new java.util.ArrayList<String>(allowedOAuthScopes.length));
          }
          for (String ele : allowedOAuthScopes) {
              this.allowedOAuthScopes.add(ele);
          }
          return this;
      }