241 # -> { "execute": "query-migrate" }  string
246 # -> { "execute": "query-migrate" }  string
266 # -> { "execute": "query-migrate" }  string
271 # -> { "execute": "query-migrate" }  string
292 # -> { "execute": "query-migrate" }  string
318 # -> { "execute": "query-migrate" }  string
458 # -> { "execute": "migrate-set-capabilities" , "arguments":  string
476 # -> { "execute": "query-migrate-capabilities" }  string
727 # -> { "execute": "migrate-set-parameters" ,  string
862 # -> { "execute": "query-migrate-parameters" }  string
895 # -> { "execute": "client_migrate_info",  string
917 # -> { "execute": "migrate-start-postcopy" }  string
1076 # -> { "execute": "x-colo-lost-heartbeat" }  string
1095 # -> { "execute": "migrate_cancel" }  string
1112 # -> { "execute": "migrate-continue" , "arguments":  string
1133 # -> { "execute": "migrate_set_downtime", "arguments": { "value": 0.1 } }  string
1154 # -> { "execute": "migrate_set_speed", "arguments": { "value": 1024 } }  string
1178 # -> { "execute": "migrate-set-cache-size",  string
1198 # -> { "execute": "query-migrate-cache-size" }  string
1236 # -> { "execute": "migrate", "arguments": { "uri": "tcp:0:4446" } }  string
1270 # -> { "execute": "migrate-incoming",  string
1296 # -> { "execute": "xen-save-devices-state",  string
1320 # -> { "execute": "xen-set-replication",  string
1355 # -> { "execute": "query-xen-replication-status" }  string
1373 # -> { "execute": "xen-colo-do-checkpoint" }  string
1410 # -> { "execute": "query-colo-status" }  string
1429 # -> { "execute": "migrate-recover",  string
1448 # -> { "execute": "migrate-pause" }  string