public GenericAttachment withImageUrl(String imageUrl) {
        setImageUrl(imageUrl);
        return this;
    }
<p>
The URL of an image that is displayed to the user.
</p>

@param imageUrl
       The URL of an image that is displayed to the user.
@return Returns a reference to this object so that method calls can be chained together.
aws-java-sdk-lex/src/main/java/com/amazonaws/services/lexruntime/model/GenericAttachment.java