| 123456789101112131415161718 | package validationimport (	"regexp"	"github.com/go-playground/validator/v10")// CheckYesOrNo - checks if a field on a struct is yes or nofunc CheckYesOrNo(fl validator.FieldLevel) bool {	return fl.Field().String() == "yes" || fl.Field().String() == "no"}// CheckRegex - check if a struct's field passes regex testfunc CheckRegex(fl validator.FieldLevel) bool {	re := regexp.MustCompile(fl.Param())	return re.MatchString(fl.Field().String())}
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