}
		labels1["le"] = fmt.Sprintf("%.3f", math.Inf(+1))
		metrics = append(metrics, MetricV2{
			Description:    desc,
			VariableLabels: labels1,
			Value:          dtoMetric.Counter.GetValue(),
		})
	}
	return metrics
}

func getBucketTTFBMetric() *MetricsGroupV2 {
	mg := &MetricsGroupV2{
		cacheInterval: 10 * time.Second,
	}

}

type check struct {
	*testing.T
	testType string
}

// Assert - checks if gotValue is same as expectedValue, if not fails the test.
func (c *check) Assert(gotValue interface{}, expectedValue interface{}) {
	c.Helper()
	if !reflect.DeepEqual(gotValue, expectedValue) {
		c.Fatalf("Test %s expected %v, got %v", c.testType, expectedValue, gotValue)
	}
}

	Timestamp1 *PrimaryTerm `parser:" @@ \",\" "`
	Timestamp2 *PrimaryTerm `parser:" @@ \")\" "`
}

// LitValue represents a literal value parsed from the sql
type LitValue struct {
	Float   *float64       `parser:"(  @Float"`
	Int     *float64       `parser:" | @Int"` // To avoid value out of range, use float64 instead

	}

	// Check if config param requested is valid.
	defKVS, ok := DefaultKVS[subSys]
	if !ok {
		return
	}

	defValue, isFound := defKVS.Lookup(cfgParam)
	// Comments usually are absent from `defKVS`, so we handle it specially.
	if !isFound && cfgParam == Comment {
		defValue, isFound = "", true
	}
	if !isFound {
		return
	}

	if target == "" {
		target = Default
	}

	default:
		return e.evalSQLFnNode(r, tableAlias)
	}
}

// evalNode on a literal value is independent of the node being an
// aggregation or a row function - it always returns a value.
func (e *LitValue) evalNode(_ Record) (res *Value, err error) {
	switch {
	case e.Int != nil:
		if *e.Int < math.MaxInt64 && *e.Int > math.MinInt64 {
			return FromInt(int64(*e.Int)), nil
		}
		return FromFloat(*e.Int), nil