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: os.go
    path of file: ./repos/malice/vendor/github.com/spf13/afero
    
    the code of the file until where you have to start completion: // Copyright Â© 2014 Steve Francia <spf@spf13.com>.
// Copyright 2013 tsuru au
    
func (OsFs) OpenFile(name string, flag int, perm os.FileMode) (File, error) {
	f, e := os.OpenFile(name, flag, perm)
	if f == nil {
		// while this looks strange, we need to return a bare nil (of type nil) not
		// a nil value of type *os.File or nil won't be nil
		return nil, e
	}
	return f, e
}