# The Container Class

Defined in: `Keyview_Container.hpp`

The Container class is a handle on a document that might contain subfiles. This allows access to each subfile in a document.

The class defines standard methods for a collection:

    Subfile Container::at(int64_tindex) const;
    const_iterator Container::begin() const;
    bool Container::empty() const;
    const_iterator Container::end() const;
    int64_t Container::size() const;

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