def METHOD_NAME(self):
    class AddFieldsOrdered(Schema):
        name = fields.Str()
        email = fields.Str()
        class Meta:
            include = {
                "from": fields.Str(),
                "in": fields.Str(),
                "@at": fields.Str(),
            }
    s = AddFieldsOrdered()
    in_data = {
        "name": "Steve",
        "from": "Oskosh",
        "email": "steve@steve.steve",
        "in": "VA",
        "@at": "Charlottesville",
    }
    # declared fields, then "included" fields
    expected_fields = ["name", "email", "from", "in", "@at"]
    assert list(AddFieldsOrdered._declared_fields.keys()) == expected_fields
    result = s.load(in_data)
    assert list(result.keys()) == expected_fields