<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
 def media(self):
 """ MPTTFilteredSelectMultiple's Media. """

        js = ['admin/js/core.js',
              'zinnia/admin/mptt/js/mptt_m2m_selectbox.js',
              'admin/js/SelectFilter2.js']
        return Media(js=[staticfiles_storage.url(path) for path in js])