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: io_wrappers.go
    path of file: ./repos/sealer/vendor/github.com/onsi/gomega/gbytes
    
    the code of the file until where you have to start completion: package gbytes

import (
	"errors"
	"io"
	"time"
)

// ErrTimeout is returned by
    
func (t timeoutReaderWriterCloser) Close() error {
	done := make(chan struct{})
	var err error

	go func() {
		err = t.c.Close()
		close(done)
	}()

	select {
	case <-done:
		return err
	case <-time.After(t.d):
		return ErrTimeout
	}
}