def check_member(self, gname, node):
        # returns True or False and the epoch number
        if gname in self.groups:
            return (node in self.groups[gname].get_members(), self.groups[gname].get_epoch())
        else:
            raise KeyError(gname)
dataset/ETHPy150Open denizalti/concoord/concoord/object/meshmembership.py/MeshMembership.check_member/original