Api formations

models/event_training.py

@@ -25,7 +25,7 @@ class EventTraining(models.Model):
     other_infos = fields.Text()
     price = fields.Char()
     certification = fields.Image()
-    attachment = fields.Binary()
+    attachment = fields.Binary(attachment=True)
     formation_type = fields.Selection(
         [
             ("person", "Présentiel"),