docs: def image(title, desc, image_name, group=None, height=None):
      """
      Builds an image element.  Image elements are primarily created
      and then wrapped into an image gallery element.  This is not required
      behavior, however and it's independent usage should be allowed depending
      on the behavior required.
  
      The Javascript will search for the `image_name` in the component's
      `imgs` directory when rendering.  For example, all verification images
      are output to `vv_xxxx-xx-xx/verification/imgs` and then the verification
      case's output page will search for `image_name` within that directory.
  
      Args:
          title: The title to display
          desc: A description of the image or plot
          image_name: The filename of the image
          group: (optional) Title of lightbox group to join
          height: (optional) Height of image thumbnail to draw
  
      Returns:
          A dictionary with the metadata specifying that it is to be
          rendered as an image element
      """
      ie = {
            'Type': 'Image',
            'Title': title,
            'Description': desc,
            'Plot File': image_name,
            }
      if group:
          ie['Group'] = group
      if height:
          ie['Height'] = height
      return ie