Responsible for building image object using ask-sdk-model in Alexa skills kit display interface https://developer.amazon.com/docs/custom-skills/display-interface-reference.html#image-object-specifications.
Add image instance in image object
source of the image
size of the image. Accepted values: X_SMALL: Displayed within extra small containers SMALL: Displayed within small containers MEDIUM: Displayed within medium containers LARGE: Displayed within large containers X_LARGE Displayed within extra large containers By default, for Echo Show, size takes the value X_SMALL. If the other size values are included, then the order of precedence for displaying images begins with X_LARGE and proceeds downward, which means that larger images will be downscaled for display on Echo Show if provided. For the best user experience, include the appropriately sized image, and do not include larger images.
widthPixels of the image
heightPixels of the image
Sets content description in image object
text used to describe the image for a screen reader