cleanup

namespace models {

// dca::phys::models::

struct PointGroup {

struct FeAsPointGroup {

  using point_group_type_list =

      dca::util::Typelist<domains::identity_group_operation<2>, domains::Cn_2D<2, 4>>;

};

template <typename /*PointGroupType*/>

class FeAsLattice : public bilayer_lattice<PointGroup> {

class FeAsLattice : public bilayer_lattice<FeAsPointGroup> {

public:

  using BaseClass = bilayer_lattice<PointGroup>;

  using BaseClass = bilayer_lattice<FeAsPointGroup>;

  constexpr static int BANDS = BaseClass::BANDS;

  constexpr static int DIMENSION = BaseClass::DIMENSION;