Finds all symmetrically equivalent sites for a particular site

        Args:
            site (PeriodicSite): A site in the structure

        Returns:
            ([PeriodicSite]): List of all symmetrically equivalent sites.

def find_equivalent_sites(self, site):
        """
        Finds all symmetrically equivalent sites for a particular site

        Args:
            site (PeriodicSite): A site in the structure

        Returns:
            ([PeriodicSite]): List of all symmetrically equivalent sites.
        """
        for sites in self.equivalent_sites:
            if site in sites:
                return sites

        raise ValueError("Site not in structure")