func contains(xs []string, s string) bool {
	for _, x := range xs {
		if x == s {
			return true
		}
	}
	return false
}
// contains checks if a string slice contains the given value.
contains checks if a string slice contains the given value.
// contains checks if a string slice contains the given value .
func contains(xs []string, s string) bool {
	for _, x := range xs {
		if x == s {
			return true
		}
	}
	return false
}
func contains ( xs [ ] string , s string ) bool { for _ , x := range xs { if x == s { return true } } return false }
contains checks if a string slice contains the given value.
contains checks if a string slice contains the given value .