public void setRadiusDistanceUnits(com.google.api.ads.adwords.axis.v201809.cm.ProximityDistanceUnits radiusDistanceUnits) {
        this.radiusDistanceUnits = radiusDistanceUnits;
    }
public void setRadiusDistanceUnits ( com . google . api . ads . adwords . axis . v201809 . cm . ProximityDistanceUnits radiusDistanceUnits ) { this . radiusDistanceUnits = radiusDistanceUnits ; }
Sets the radiusDistanceUnits value for this Proximity.

@param radiusDistanceUnits   * Radius distance units.
<span class="constraint Required">This field is
required and should not be {@code null} when it is contained within
{@link Operator}s : ADD.</span>