Query:
/api/gps_gsp4zhat/?_offset=0
{'children': [], 'generators': [], 'id': 55, 'index': 720, 'isogeny_orbits': [[2, 1, 15]], 'label': '2.720.1', 'level': 2, 'orbits': [[2, 1, 15]], 'parents': ['2.144.1', '2.240.1', '2.240.2', '2.360.1', '2.360.2', '2.360.3'], 'quadratic_twists': ['2.720.1']}