package main

import (
	"golang.org/x/net/html"
)

func main() {
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	const x = 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	fmt.Println("Hello.")

	var _ = html.Parse // Mention "golang.org/x/net/html" package so that it continues to be imported.
}

func addImportSpaces(r io.Reader, breaks []string) []byte {
	var out bytes.Buffer
	sc := bufio.NewScanner(r)
	inImports := false
	done := false
	for sc.Scan() {
		s := sc.Text()

		if !inImports && !done && strings.HasPrefix(s, "import") {
			inImports = true
		}
		if inImports && (strings.HasPrefix(s, "var") ||
			strings.HasPrefix(s, "func") ||
			strings.HasPrefix(s, "const") ||
			strings.HasPrefix(s, "type")) {
			done = true
			inImports = false
		}
		if inImports && len(breaks) > 0 {
			if m := impLine.FindStringSubmatch(s); m != nil {
				if m[1] == string(breaks[0]) {
					out.WriteByte('\n')
					breaks = breaks[1:]
				}
			}
		}

		fmt.Fprintln(&out, s)
	}
	return out.Bytes()
}