Help to deserialize complex JSON

I need to deserialize this JSON:

```json
{
"emails": {
"items": [
{
"id": 1,
"email": "john@doe.com"
},
{
"id": 2,
"email": "jane@doe.com"
}
]
}
}
```

Into this object using Marshmallow:

```json
{
"emails": [
{
"id": 1,
"email": "john@doe.com"
},
{
"id": 2,
"email": "jane@doe.com"
}
]
}
```

How can I do it?

I tried this way, which I found more intuitive, but it did not work:

```python
class Phone(OrderedSchema):
id = fields.Int()
email = fields.Str()

class Contact(Schema):
key = fields.Str()
phones = fields.Nested(Phone, load_from='phones.list', many=True)
```

The issue provides only Python and Marshmallow snippets, with no repository file or test target. Reproduce the shown input and schema behavior first; completion would require documenting a supported mapping and example that produces the requested output, but the issue does not define a code change.

Written by the indexing model from the issue text.