// map header, size 7
	// string "NewerThan"
	o = append(o, 0x87, 0xa9, 0x4e, 0x65, 0x77, 0x65, 0x72, 0x54, 0x68, 0x61, 0x6e)
	o = msgp.AppendDuration(o, z.NewerThan)
	// string "OlderThan"
	o = append(o, 0xa9, 0x4f, 0x6c, 0x64, 0x65, 0x72, 0x54, 0x68, 0x61, 0x6e)
	o = msgp.AppendDuration(o, z.OlderThan)
	// string "CreatedAfter"
	o = append(o, 0xac, 0x43, 0x72, 0x65, 0x61, 0x74, 0x65, 0x64, 0x41, 0x66, 0x74, 0x65, 0x72)

	o = msgp.Require(b, z.Msgsize())
	// map header, size 2
	// string "cacheInterval"
	o = append(o, 0x82, 0xad, 0x63, 0x61, 0x63, 0x68, 0x65, 0x49, 0x6e, 0x74, 0x65, 0x72, 0x76, 0x61, 0x6c)
	o = msgp.AppendDuration(o, z.cacheInterval)
	// string "metricsGroupOpts"
	o = append(o, 0xb0, 0x6d, 0x65, 0x74, 0x72, 0x69, 0x63, 0x73, 0x47, 0x72, 0x6f, 0x75, 0x70, 0x4f, 0x70, 0x74, 0x73)
	o, err = z.metricsGroupOpts.MarshalMsg(o)

	o = msgp.AppendString(o, z.Endpoint)
	// string "TotalDowntime"
	o = append(o, 0xad, 0x54, 0x6f, 0x74, 0x61, 0x6c, 0x44, 0x6f, 0x77, 0x6e, 0x74, 0x69, 0x6d, 0x65)
	o = msgp.AppendDuration(o, z.TotalDowntime)
	// string "LastOnline"
	o = append(o, 0xaa, 0x4c, 0x61, 0x73, 0x74, 0x4f, 0x6e, 0x6c, 0x69, 0x6e, 0x65)
	o = msgp.AppendTime(o, z.LastOnline)
	// string "Online"