[linq] Entity framework linq query Include() multiple children entities

Might be it will help someone, 4 level and 2 child's on each level

Library.Include(a => a.Library.Select(b => b.Library.Select(c => c.Library)))
            .Include(d=>d.Book.)
            .Include(g => g.Library.Select(h=>g.Book))
            .Include(j => j.Library.Select(k => k.Library.Select(l=>l.Book)))

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