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0:1:::1:(AnyType)::0:0(AnyType)
0.0:0:::1:title(StringType)::1:The Illiad(StringType)
1:3:::1:group1(AnyType)::0:0(AnyType)
1.0:0:::1:authors(ListType)::1:[](ListType)
1.1:0:::1:pages(IntegerType)::1:112233(IntegerType)
1.2:0:::1:price(DoubleType)::1:1.234000(DoubleType)
2:2:::1:group2(AnyType)::0:0(AnyType)
2.0:0:::1:extras(DictType)::1:{}(DictType)
2.1:0:::1:publisher(ObjectType)::1:NULL(ObjectType)
