/**
     * This function returns the PLAData of a Cinema 4D object. Returned
     * pointer is owned by the passed geData object and is freed with its
     * destruction.
     *
     * @param  op      The object to get the PLAData from.
     * @param  geData  This GeData object must stay alive as long as the
     *                 returned PLAData object is in use.
     * @return   A pointer to the PLAData of the object or nullptr if it
     * could not be obtained (eg. there is not PLA animation track)
     */
    _melange_::PLAData* GetPLAData(_melange_::BaseObject* op, _melange_::GeData& geData);


    PLAData* GetPLAData(BaseObject* op, GeData& geData) {
        CTrack* track = op->FindCTrack(DescID(CTpla));
        if (!track)
            return nullptr;

        if (!track->GetParameter(CK_PLA_DATA, geData))
            return nullptr;

        // TODO: Why is geData.GetType() == 0?
        return static_cast<PLAData*>(geData.GetCustomDataType(CUSTOMDATATYPE_PLA));
    }