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: ierrorinfo.go
    path of file: ./repos/sliver/implant/vendor/github.com/Ne0nd0g/go-clr
    
    the code of the file until where you have to start completion: // +build windows

package clr

import (
	"fmt"
	"syscall"
	"unsafe"

	"golang.org/x/sys/windows"
)

type IErrorInfo struct {
	vtbl *IErrorInfoVtbl
}

// IErrorInfoVtbl returns information about an error i
    
func (obj *IErrorInfo) GetDescription() (pbstrDescription *string, err error) {
	debugPrint("Entering into ierrorinfo.GetDescription()...")

	hr, _, err := syscall.Syscall(
		obj.vtbl.GetDescription,
		2,
		uintptr(unsafe.Pointer(obj)),
		uintptr(unsafe.Pointer(&pbstrDescription)),
		0,
	)

	if err != syscall.Errno(0) {
		err = fmt.Errorf("the IErrorInfo::GetDescription method returned an error:\r\n%s", err)
		return
	}
	if hr != S_OK {
		err = fmt.Errorf("the IErrorInfo::GetDescription method method returned a non-zero HRESULT: 0x%x", hr)
		return
	}
	err = nil
	return
}