SIDES = (
    ('two_or_more', 'two or more',),
    ('customer_only', 'customer only',),
    ('only_company', 'onlycompany'),
)

STATUS = (
    ('created', 'created',),
    ('signed_company', 'signed by company',),
    ('signed_customer', 'signed by customer',),
    ('cancelled', 'cancelled')
)