}
	sc.startGracefulShutdownInternal()
	// http://tools.ietf.org/html/rfc7540#section-6.8
	// We should not create any new streams, which means we should disable push.
	sc.pushEnabled = false
	return nil
}

// isPushed reports whether the stream is server-initiated.
func (st *http2stream) isPushed() bool {
	return st.id%2 == 0
}