[IMP]: Allow to pass storage as a context key

attachment_s3/models/ir_attachment.py

@@ -131,7 +131,8 @@ class IrAttachment(models.Model):
 
     @api.model
     def _store_file_write(self, key, bin_data):
-        if self._storage() == 's3':
+        location = self.env.context.get('storage_location') or self._storage()
+        if location == 's3':
             bucket = self._get_s3_bucket()
             obj = bucket.Object(key=key)
             file = io.BytesIO()