public com.google.api.ads.adwords.axis.v201809.cm.Image getSquareMarketingImage() {
        return squareMarketingImage;
    }
public com . google . api . ads . adwords . axis . v201809 . cm . Image getSquareMarketingImage ( ) { return squareMarketingImage ; }
Gets the squareMarketingImage value for this ResponsiveDisplayAd.

@return squareMarketingImage   * Square marketing image to be used in the ad. This image may
be used when a square aspect ratio
is more appropriate than the aspect ratio of the
{@link #marketingImage} image. This ad format
does not allow the creation of an image using
the Image.data field. An image must first be
created using the MediaService, and Image.mediaId
must be populated when creating a {@link
"ResponsiveDisplayAd"}. Valid image types are
GIF, JPEG, and PNG. The minimum size is 300x300
the aspect ratio must be 1:1 (+-1%).
<span class="constraint Selectable">This field
can be selected using the value "SquareMarketingImage".</span>