old_contents: """
  Emissivity models and atomic calculations for simulating radiation from coronal loops
  """
  
  from .chianti import ChIon
  from .emission_models import EquilibriumEmissionModel
  
new_contents: """
  Emissivity models and atomic calculations for simulating radiation from coronal loops
  """
  
  from .chianti import ChIon
  from .emission_models import EquilibriumEmissionModel
  from .nei import get_ion_info,solve_nei_populations
  
subject: make the nei solver and data grabber importable