{
								Source: &security_beta.Source{
									Principals: []string{"sa1"},
								},
							},
							{
								Source: &security_beta.Source{
									Principals: []string{"sa2"},
								},
							},
						},
						To: []*security_beta.Rule_To{
							{
								Operation: &security_beta.Operation{
									Methods: []string{"GET"},
								},
							},
							{