'days': fields.integer('Number of Days', required=True, help="Number of days to add before computation of the day of month." \
"If Date=15/01, Number of Days=22, Day of Month=-1, then the due date is 28/02."),
'days2': fields.integer('Day of the Month', required=True, help="Day of the month, set -1 for the last day of the current month. If it's positive, it gives the day of the next month. Set 0 for net days (otherwise it's based on the beginning of the month)."),
'days': fields.integer('Number of Days', required=True, help="Number of days to add before computation of the day of month." \
"If Date=15/01, Number of Days=22, Day of Month=-1, then the due date is 28/02."),
'days2': fields.integer('Day of the Month', required=True, help="Day of the month, set -1 for the last day of the current month. If it's positive, it gives the day of the next month. Set 0 for net days (otherwise it's based on the beginning of the month)."),