INTERPKERNEL_EXPORT void tryToConvertInUnit(double val);
INTERPKERNEL_EXPORT DecompositionInUnitBase &operator*(const DecompositionInUnitBase& other);
INTERPKERNEL_EXPORT DecompositionInUnitBase &operator/(const DecompositionInUnitBase& other);
INTERPKERNEL_EXPORT void tryToConvertInUnit(double val);
INTERPKERNEL_EXPORT DecompositionInUnitBase &operator*(const DecompositionInUnitBase& other);
INTERPKERNEL_EXPORT DecompositionInUnitBase &operator/(const DecompositionInUnitBase& other);