This property contains the name of the image files embedded into the HTML message.
def get_image_file(image_index: int) -> str: ... def set_image_file(image_index: int, value: str) -> None: ...
This property contains the name of the image files embedded into the HTML message. This value is updated every time message_html is set. You may change the file names prior to sending (e.g. if they don't point to valid files).
The image_index parameter specifies the index of the item in the array. The size of the array is controlled by the image_count property.