code: public final void setCardViewElevation(final int elevation) {
          Condition.INSTANCE.ensureAtLeast(elevation, 0, "The elevation must be at least 0");
          Condition.INSTANCE.ensureAtMaximum(elevation, ElevationUtil.MAX_ELEVATION,
                  "The elevation must be at maximum " + ElevationUtil.MAX_ELEVATION);
          this.cardViewElevation = elevation;
          adaptCardViewElevation();
      }
docs: Sets the elevation of the card view, which contains the currently shown prefernce fragment,
  when using the split screen layout.
  
  @param elevation
  The elevation, which should be set, in dp as an {@link Integer} value. The elevation
  must be at least 0 and at maximum 16