docs: public StopWorkspacesResult withFailedRequests(FailedWorkspaceChangeRequest... failedRequests) {
          if (this.failedRequests == null) {
              setFailedRequests(new com.amazonaws.internal.SdkInternalList<FailedWorkspaceChangeRequest>(failedRequests.length));
          }
          for (FailedWorkspaceChangeRequest ele : failedRequests) {
              this.failedRequests.add(ele);
          }
          return this;
      }