@image_nb.setter<EOL><INDENT>def image_nb(self, image_nb: int):<DEDENT>
if image_nb is None:<EOL><INDENT>raise ValueError("<STR_LIT>")  <EOL><DEDENT>self._image_nb = image_nb<EOL>
Sets the image_nb of this Survey.


        :param image_nb: The image_nb of this Survey.
        :type image_nb: int