Marshmallow: Fix warning default -> dump_default
Related to https://github.com/marshmallow-code/marshmallow/pull/1742
I can't tell if it works, i have just followed the warning message asking to rename this attributes.
Related to https://github.com/marshmallow-code/marshmallow/pull/1742
I can't tell if it works, i have just followed the warning message asking to rename this attributes.