type io.StringWriter

7 uses

	io (current package)
		io.go#L300: type StringWriter interface {
		io.go#L308: 	if sw, ok := w.(StringWriter); ok {
		multi.go#L72: var _ StringWriter = (*multiWriter)(nil)
		multi.go#L77: 		if sw, ok := w.(StringWriter); ok {

	net/http
		header.go#L187: 	ws, ok := w.(io.StringWriter)

	strings
		replace.go#L322: func getStringWriter(w io.Writer) io.StringWriter {
		replace.go#L323: 	sw, ok := w.(io.StringWriter)

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