def __str__(self):
        """ the str representation of the GeoStruct

        Returns
        -------
        str : str
            the str representation of the GeoStruct
        """
        s = ''
        s += 'name:{0},nugget:{1},structures:\n'.format(self.name,self.nugget)
        for v in self.variograms:
            s += str(v)
        return s
def __str__ ( self ) : s = '' s += 'name:{0},nugget:{1},structures:\n' . format ( self . name , self . nugget ) for v in self . variograms : s += str ( v ) return s
the str representation of the GeoStruct

        Returns
        -------
        str : str
            the str representation of the GeoStruct