public ImageResponseCard withImageUrl(String imageUrl) {
        setImageUrl(imageUrl);
        return this;
    }
<p>
The URL of an image to display on the response card. The image URL must be publicly available so that the
platform displaying the response card has access to the image.
</p>

@param imageUrl
       The URL of an image to display on the response card. The image URL must be publicly available so that the
       platform displaying the response card has access to the image.
@return Returns a reference to this object so that method calls can be chained together.
aws-java-sdk-lexruntimev2/src/main/java/com/amazonaws/services/lexruntimev2/model/ImageResponseCard.java