old_contents: """
  Extensions for configuring input files for and loading results from hydrodynamic models
  """
  
  from .ebtel import EbtelInterface
  from .heating_models import UniformHeating,PowerLawScaledWaitingTimes,PowerLawUnscaledWaitingTimes
  
new_contents: """
  Extensions for configuring input files for and loading results from hydrodynamic models
  """
  
  from .ebtel import EbtelInterface
  from .heating_models import UniformHeating,PowerLawScaledWaitingTimes,PowerLawUnscaledWaitingTimes
  from .heating_models import calculate_free_energy,power_law_transform
  
subject: make heating model helpers available