return &bufioWriter4kPool
	}
	return nil
}

// newBufioReader should be an internal detail,
// but widely used packages access it using linkname.
// Notable members of the hall of shame include:
//   - github.com/gobwas/ws
//
// Do not remove or change the type signature.
// See go.dev/issue/67401.
//
//go:linkname newBufioReader
func newBufioReader(r io.Reader) *bufio.Reader {