def e_image(image_url, alt_text):
    """
    Create a block Image element that can be used as a section accessory; not
    to be confused with an action "Image" block (see `func`:image above) for that.

    Parameters
    ----------
    image_url : str
    alt_text : str

    Returns
    -------
    dict
    """
    return {'type': 'image', 'image_url': image_url, 'alt_text': alt_text}