old_contents: """Pyaccel package."""
  
  from . import elements
  from . import accelerator
  from . import lattice
  from . import tracking
  from . import graphics
  from . import lifetime
  from . import naff
  
  import os as _os
  with open(_os.path.join(__path__[0], 'VERSION'), 'r') as _f:
      __version__ = _f.read().strip()
  
new_contents: """Pyaccel package."""
  
  from . import elements
  from . import accelerator
  from . import lattice
  from . import tracking
  from . import graphics
  from . import intrabeam_scattering
  from . import lifetime
  from . import naff
  
  import os as _os
  with open(_os.path.join(__path__[0], 'VERSION'), 'r') as _f:
      __version__ = _f.read().strip()
  
subject: Add import of intrabeam_scattering in root __init__.py.