The <cxxStructDerivations> element specifies a list of struct derivations for a struct.
Used within a <cxxStructDefinition> element to specify any struct derivations (base structes etc.) for a struct. Must contain at least one <cxxStructDerivation> or <cxxStructDerivation> element.
<cxxStructDefinition> <cxxStructDerivations> <cxxStructDerivation> ... </cxxStructDerivation> ... </cxxStructDerivations> <cxxStructAPIItemLocation> ... </cxxStructAPIItemLocation> <cxxStructDefinition>
(cxxClassDerivation or cxxStructDerivation (any number) )