code: public String renderStr(String key, String template, Object... args) {
          return renderString(key, template, args);
      }
docs: Render template by string typed inline template content and an array of
  template args. The render result is returned as a String
  <p/>
  <p>See {@link #getTemplate(java.io.File, Object...)} for note on
  render args</p>
  
  @param template the inline template content
  @param args     the render args array
  @return render result