</p>

<pre>
type Pair[A, B any] struct {
	a A
	b B
}

func (p Pair[A, B]) Swap() Pair[B, A]  { … }  // receiver declares A, B
func (p Pair[First, _]) First() First  { … }  // receiver declares First, corresponds to A in Pair
</pre>

<p>
If the receiver type is denoted by (a pointer to) an <a href="#Alias_declarations">alias</a>,

    <_comment>Temporary files created by MSOffice applications</_comment>
    <_comment>PRONOM fmt-473</_comment>
    <_comment>First byte and 53rd byte are the same -- the length of the name.</_comment>
    <_comment>Based on TIKA-2469, we've added a heuristic/wild guess that the first 10 chars</_comment>
    <_comment>after the length byte should be \x00 or a non-control character.</_comment>
    <magic priority="80">