def getlowerenergy(self):
    ' Method to get the lower state energy.\n\n            Parameters\n            ----------\n            None\n\n            Returns\n            -------\n            Float of the lower state energy.\n\n        '
    return self.energies[0]
Method to get the lower state energy.

Parameters
----------
None

Returns
-------
Float of the lower state energy.
def getlowerenergy(self):
    ' Method to get the lower state energy.\n\n            Parameters\n            ----------\n            None\n\n            Returns\n            -------\n            Float of the lower state energy.\n\n        '
    return self.energies[0]