std::optional< double > quantum_number_f
std::optional< double > quantum_number_l
std::optional< double > quantum_number_nui
std::optional< int > quantum_number_n
std::optional< double > quantum_number_j_ryd
std::optional< double > energy
std::optional< double > quantum_number_m
std::optional< double > quantum_number_l_ryd
std::optional< double > quantum_number_j
std::optional< double > quantum_number_s
std::optional< double > quantum_number_nu