code: public <T extends CanvasWriter> T getWriter(Class<T> type, OauthToken oauthToken) {
          return getWriter(type, oauthToken, false);
      }
docs: Get a writer implementation to push data into Canvas.
  @param type Interface type you wish to get an implementation for
  @param oauthToken An OAuth token to use for authentication when making API calls
  @param <T> A writer implementation
  @return A writer implementation class