Hello community friends.
I am working with the new api 8.0 of odoo 
And Please I need you help... 
I have two fields: field_1 and field_2:
field_1 = fields.Many2one(........, compute='_filling_method')
field_2 = fields.Many2one(........, compute='_filling_method')
... and the _filling_method:
@api.depends('field_1', 'field_2')
def _filling_method(self):
     .......
How I can know what is the trigger field in the method? field_1 or field_2?
@api.depends('field_1', 'field_2')
def _filling_method(self):
     if trigger == 'field_1':
         ......
     if trigger == 'field_2':
         .....
Is there any way? 
Thanks a lot.!
