I relied on a "probes" field in the <https://atlas.ripe.net/api/v1/measurement/1011817/?fields=> data to find out the number of probes allocated to a measurement. Now, it is no longer available :-( % curl 'https://atlas.ripe.net/api/v1/measurement/1011817/?fields=' {"can_visualise": false, "creation_time": 1372080547, "description": "IPv4 base connectivity tests with 46.226.105.0", "dst_addr": "46.226.105.0", "dst_asn": null, "dst_name": "46.226.105.0", "interval": null, "is_oneoff": true, "is_public": true, "msm_id": 1011817, "packets": 3, "probe_sources": [["Area", "WW", 10]], "resolve_on_probe": false, "resolved_ips": ["46.226.105.0"], "result": "/api/v1/measurement/1011817/result/", "start_time": 1372080547, "status": {"id": 2, "name": "Ongoing"}, "stop_time": null, "type": {"id": 1, "name": "ping"}} What is its replacement?