code: @Deprecated
    @Implementation
    protected float getRefreshRate() {
      if (refreshRate != null) {
        return refreshRate;
      }
      float realRefreshRate = directlyOn(realObject, Display.class).getRefreshRate();
      // refresh rate may be set by native code. if its 0, set to 60fps
      if (realRefreshRate < 0.1) {
        realRefreshRate = 60;
      }
      return realRefreshRate;
    }
docs: If {@link #setRefreshRate(float)} has been called, this method will return the specified value.
  
  @deprecated This behavior is deprecated and will be removed in Robolectric 3.7.