Support for a wrapped list

[cercide]

XML data structures commonly wrap element and primitive collections. For instance, a library may have some books and magazines as well; exemplified below.

<Library>
    <Books>
        <Book>book 1</Book>
        <Book>book 2</Book>
    </Books>
    <Magazines>
        <Magazine>book 1</Magazine>
        <Magazine>book 2</Magazine>
    </Magazines>
</Library>

Currently, xsdata requires an additional wrapper class to represent this data structure.

@dataclass
class Book:
    title: str = field( metadata={"type": "Text"})

@dataclass
class Books:
    books: List[Book] 

@dataclass
class Library:
    books: Books

Obviously, the wrapper class Books does not have any meaning and bloats the source code . It would be a great thing if xsdata would support wrapped data structures by using just a keyword at a fields metadata.