public com.google.api.ads.admanager.axis.v201811.AdUnitSize[] getCompanions() {
        return companions;
    }
public com . google . api . ads . admanager . axis . v201811 . AdUnitSize [ ] getCompanions ( ) { return companions ; }
Gets the companions value for this AdUnitSize.

@return companions   * The companions for this ad unit size.
Companions are only valid if the environment is {@link
EnvironmentType#VIDEO_PLAYER}.
If the environment is {@link EnvironmentType#BROWSER}
including companions
results in an error.