Reinitialise the stored displacements, number of hops, and list of sites visited for this `Atom`.

        Args:
            None

        Returns:
            None

def reset( self ):
        """
        Reinitialise the stored displacements, number of hops, and list of sites visited for this `Atom`.

        Args:
            None

        Returns:
            None
        """
        self.number_of_hops = 0
        self.dr = np.array( [ 0.0, 0.0, 0.0 ] )
        self.summed_dr2 = 0.0
        self.sites_visited = [ self._site.number ]