func funcDaysInMonth(vals []Value, args Expressions, enh *EvalNodeHelper) Vector {
	return dateWrapper(vals, enh, func(t time.Time) float64 {
		return float64(32 - time.Date(t.Year(), t.Month(), 32, 0, 0, 0, 0, time.UTC).Day())
	})
}
func funcDaysInMonth(vals []Value, args Expressions, enh *EvalNodeHelper) Vector {
	return dateWrapper(vals, enh, func(t time.Time) float64 {
		return float64(32 - time.Date(t.Year(), t.Month(), 32, 0, 0, 0, 0, time.UTC).Day())
	})
}
func funcDaysInMonth ( vals [ ] Value , args Expressions , enh * EvalNodeHelper ) Vector { return dateWrapper ( vals , enh , func ( t time . Time ) float64 { return float64 ( 32 - time . Date ( t . Year ( ) , t . Month ( ) , 32 , 0 , 0 , 0 , 0 , time . UTC ) . Day ( ) ) } ) }
// === days_in_month(v Vector) Scalar ===
=== days_in_month ( v Vector ) Scalar ===