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: types.go
    path of file: ./repos/sliver/vendor/github.com/chromedp/cdproto/browser
    
    the code of the file until where you have to start completion: package browser

// Code generated by cdproto-gen. DO NOT EDIT.

import (
	"fmt"

	"github.com/mailru/easyjson"
	"github.com/mailru/easyjson/jlexer"
	"github.com/mailru/easyjson/jwriter"
)

// WindowID [no description].
//
// See: https://chromedevtools.github.io/d
    
func (t *WindowState) UnmarshalEasyJSON(in *jlexer.Lexer) {
	v := in.String()
	switch WindowState(v) {
	case WindowStateNormal:
		*t = WindowStateNormal
	case WindowStateMinimized:
		*t = WindowStateMinimized
	case WindowStateMaximized:
		*t = WindowStateMaximized
	case WindowStateFullscreen:
		*t = WindowStateFullscreen

	default:
		in.AddError(fmt.Errorf("unknown WindowState value: %v", v))
	}
}