{ "HISTORY": { "summary": "Returns timestamp-latency samples for an event.", "complexity": "O(1)", "group": "server", "since": "2.8.13", "arity": 3, "container": "LATENCY", "function": "latencyCommand", "command_flags": [ "ADMIN", "NOSCRIPT", "LOADING", "STALE" ], "command_tips": [ "NONDETERMINISTIC_OUTPUT", "REQUEST_POLICY:ALL_NODES", "RESPONSE_POLICY:SPECIAL" ], "reply_schema": { "type": "array", "description": "An array where each element is a two elements array representing the timestamp and the latency of the event.", "items": { "type": "array", "minItems": 2, "maxItems": 2, "items": [ { "description": "timestamp of the event", "type": "integer", "minimum": 0 }, { "description": "latency of the event", "type": "integer", "minimum": 0 } ] } }, "arguments": [ { "name": "event", "type": "string" } ] } }