once       sync.Once
}

// WithCleanupFuncs sets additional cleanup functions to be called when closing
// the GetObjectReader.
func (g *GetObjectReader) WithCleanupFuncs(fns ...func()) *GetObjectReader {
	g.cleanUpFns = append(g.cleanUpFns, fns...)
	return g
}

// NewGetObjectReaderFromReader sets up a GetObjectReader with a given
// reader. This ignores any object properties.