old_contents: from galpy.actionAngle_src import actionAngle
  from galpy.actionAngle_src import actionAngleFlat
  
  #
  # Classes
  #
  actionAngle= actionAngle.actionAngle
  actionAngleFlat= actionAngleFlat.actionAngleFlat
  
new_contents: from galpy.actionAngle_src import actionAngle
  from galpy.actionAngle_src import actionAngleFlat
  from galpy.actionAngle_src import actionAnglePower
  
  #
  # Classes
  #
  actionAngle= actionAngle.actionAngle
  actionAngleFlat= actionAngleFlat.actionAngleFlat
  actionAnglePower= actionAnglePower.actionAnglePower
  
subject: add actionAnglePower to top-level