The same as calling ``client.getAdditionalImages(build.setID)``.

        :returns: A list of URL strings.
        :rtype: list

def getAdditionalImages(self):
        '''
        The same as calling ``client.getAdditionalImages(build.setID)``.

        :returns: A list of URL strings.
        :rtype: list
        '''

        self._additionalImages = self._client.getAdditionalImages(self.setID)
        return self._additionalImages