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/systeminfo
    
    the code of the file until where you have to start completion: package systeminfo

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

import (
    
func (t *ImageType) UnmarshalEasyJSON(in *jlexer.Lexer) {
	v := in.String()
	switch ImageType(v) {
	case ImageTypeJpeg:
		*t = ImageTypeJpeg
	case ImageTypeWebp:
		*t = ImageTypeWebp
	case ImageTypeUnknown:
		*t = ImageTypeUnknown

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