def __init__(self):
        """
        creates an instance of the PoissonDist class

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

        Returns
        -------
        self
        """
        super(PoissonDist, self).__init__(name='poisson', scale=1.)
        self._exclude.append('scale')
def __init__ ( self ) : super ( PoissonDist , self ) . __init__ ( name = 'poisson' , scale = 1. ) self . _exclude . append ( 'scale' )
creates an instance of the PoissonDist class

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

        Returns
        -------
        self