You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: typeterm.go
    path of file: ./repos/sliver/implant/vendor/golang.org/x/tools/internal/typeparams
    
    the code of the file until where you have to start completion: // Copyright 2021 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.

// Code generated by copytermlist.go DO NOT EDIT.

package typeparams

import "go/types"

// A term describes elementary type sets:
//
//	 âˆ…:  (*term
    
func (x *term) subsetOf(y *term) bool {
	// easy cases
	switch {
	case x == nil:
		return true // âˆ… âŠ† y == true
	case y == nil:
		return false // x âŠ† âˆ… == false since x != âˆ…
	case y.typ == nil:
		return true // x âŠ† ğ“¤ == true
	case x.typ == nil:
		return false // ğ“¤ âŠ† y == false since y != ğ“¤
	}
	// âˆ… âŠ‚ x, y âŠ‚ ğ“¤

	if x.disjoint(y) {
		return false // x âŠ† y == false if x âˆ© y == âˆ…
	}
	// x.typ == y.typ

	// ~t âŠ† ~t == true
	// ~t âŠ† T == false
	//  T âŠ† ~t == true
	//  T âŠ†  T == true
	return !x.tilde || y.tilde
}