('president',models.ForeignKey(blank=True,help_text='Displayed on subscription vouchers',null=True,on_delete=django.db.models.deletion.SET_NULL,to=settings.AUTH_USER_MODEL,verbose_name='President of the association')),
],
options={
'verbose_name':'Mandate',
'verbose_name_plural':'Mandates',
'permissions':(('view_mandate','Can view a mandate'),),
field=models.BooleanField(default=False,help_text='Be carefull, if no mandate is defined on the preferences page, errors will be triggered when generating vouchers.',verbose_name='Send voucher by email when the invoice is controlled.'),