or string types and associate methods with them:
</p>

<pre>
type TimeZone int

const (
	EST TimeZone = -(5 + iota)
	CST
	MST
	PST
)

func (tz TimeZone) String() string {
	return fmt.Sprintf("GMT%+dh", tz)
}
</pre>

<p>
If the type definition specifies <a href="#Type_parameter_declarations">type parameters</a>,