// - '__' escapes to '__underscores__'
	// - '.' escapes to '__dot__'
	// - '-' escapes to '__dash__'
	// - '/' escapes to '__slash__'
	// - Property names that exactly match a CEL RESERVED keyword escape to '__{keyword}__'. The keywords are:
	//	  "true", "false", "null", "in", "as", "break", "const", "continue", "else", "for", "function", "if",
	//	  "import", "let", "loop", "package", "namespace", "return".
	// Examples:

	key, err := ecdsa.GenerateKey(elliptic.P256(), rand.Reader)
	if err != nil {
		t.Fatal(err)
	}
	keyDER, err := x509.MarshalPKCS8PrivateKey(key)
	if err != nil {
		t.Fatal(err)
	}
	keyPEM := pem.EncodeToMemory(&pem.Block{Type: "PRIVATE KEY", Bytes: keyDER})
	tmpl := &x509.Certificate{
		SerialNumber: big.NewInt(1),
		Subject:      pkix.Name{CommonName: "test"},
	}

  // - '__' escapes to '__underscores__'
  // - '.' escapes to '__dot__'
  // - '-' escapes to '__dash__'
  // - '/' escapes to '__slash__'
  // - Property names that exactly match a CEL RESERVED keyword escape to '__{keyword}__'. The keywords are:
  // 	  "true", "false", "null", "in", "as", "break", "const", "continue", "else", "for", "function", "if",
  // 	  "import", "let", "loop", "package", "namespace", "return".
  // Examples:

  // - '__' escapes to '__underscores__'
  // - '.' escapes to '__dot__'
  // - '-' escapes to '__dash__'
  // - '/' escapes to '__slash__'
  // - Property names that exactly match a CEL RESERVED keyword escape to '__{keyword}__'. The keywords are:
  // 	  "true", "false", "null", "in", "as", "break", "const", "continue", "else", "for", "function", "if",
  // 	  "import", "let", "loop", "package", "namespace", "return".
  // Examples:

		HTTPStatusCode: http.StatusBadRequest,
	},
	ErrParseExpectedKeyword: {
		Code:           "ParseExpectedKeyword",
		Description:    "Did not find the expected keyword in the SQL expression.",
		HTTPStatusCode: http.StatusBadRequest,
	},
	ErrParseExpectedTokenType: {
		Code:           "ParseExpectedTokenType",

Or you can amend an existing KEYS file by issuing the following commands:

[source,bash]
----
$ gpg --no-default-keyring --keyring /tmp/keyring.gpg --recv-keys 8756c4f765c9ac3cb6b85d62379ce192d401ab61

gpg: keybox '/tmp/keyring.gpg' created
gpg: key 379CE192D401AB61: public key "Bintray (by JFrog) <****>" imported
gpg: Total number processed: 1
gpg:               imported: 1

# Write its ASCII-armored version

	// - '__' escapes to '__underscores__'
	// - '.' escapes to '__dot__'
	// - '-' escapes to '__dash__'
	// - '/' escapes to '__slash__'
	// - Property names that exactly match a CEL RESERVED keyword escape to '__{keyword}__'. The keywords are:
	//	  "true", "false", "null", "in", "as", "break", "const", "continue", "else", "for", "function", "if",
	//	  "import", "let", "loop", "package", "namespace", "return".
	// Examples:

		if !ent.IsDir() && strings.HasSuffix(ent.Name(), ".go") {
			return true
		}
	}
	return false
}

func findImportComment(data []byte) (s string, line int) {
	// expect keyword package
	word, data := parseWord(data)
	if string(word) != "package" {
		return "", 0
	}

	// expect package name
	_, data = parseWord(data)

	// - '__' escapes to '__underscores__'
	// - '.' escapes to '__dot__'
	// - '-' escapes to '__dash__'
	// - '/' escapes to '__slash__'
	// - Property names that exactly match a CEL RESERVED keyword escape to '__{keyword}__'. The keywords are:
	//	  "true", "false", "null", "in", "as", "break", "const", "continue", "else", "for", "function", "if",
	//	  "import", "let", "loop", "package", "namespace", "return".
	// Examples:

// * unsigned char is used for booleans (instead of the 'bool' type).
//   In C++ bool is a keyword while in C99 bool is a macro defined
//   in stdbool.h. It is possible for the two to be inconsistent.
//   For example, neither the C99 nor the C++11 standard force a byte
//   size on the bool type, so the macro defined in stdbool.h could
//   be inconsistent with the bool keyword in C++. Thus, the use
//   of stdbool.h is avoided and unsigned char is used instead.