How to use the antlr4ts/misc/Utils.toCharArray function in antlr4ts

public static get _ATN(): ATN {
		if (!CPP14Lexer.__ATN) {
			CPP14Lexer.__ATN = new ATNDeserializer().deserialize(Utils.toCharArray(CPP14Lexer._serializedATN));
		}

		return CPP14Lexer.__ATN;
	}

public static get _ATN(): ATN {
		if (!YAJSLexer.__ATN) {
			YAJSLexer.__ATN = new ATNDeserializer().deserialize(Utils.toCharArray(YAJSLexer._serializedATN));
		}

		return YAJSLexer.__ATN;
	}

static get _ATN() {
        if (!TomLexer.__ATN) {
            TomLexer.__ATN = new ATNDeserializer_1.ATNDeserializer().deserialize(Utils.toCharArray(TomLexer._serializedATN));
        }
        return TomLexer.__ATN;
    }
}

public static get _ATN(): ATN {
		if (!LGFileLexer.__ATN) {
			LGFileLexer.__ATN = new ATNDeserializer().deserialize(Utils.toCharArray(LGFileLexer._serializedATN));
		}

		return LGFileLexer.__ATN;
	}

public static get _ATN(): ATN {
		if (!TomLexer.__ATN) {
			TomLexer.__ATN = new ATNDeserializer().deserialize(Utils.toCharArray(TomLexer._serializedATN));
		}

		return TomLexer.__ATN;
	}

public static get _ATN(): ATN {
		if (!ExpressionLexer.__ATN) {
			ExpressionLexer.__ATN = new ATNDeserializer().deserialize(Utils.toCharArray(ExpressionLexer._serializedATN));
		}

		return ExpressionLexer.__ATN;
	}

public static get _ATN(): ATN {
		if (!LGFileLexer.__ATN) {
			LGFileLexer.__ATN = new ATNDeserializer().deserialize(Utils.toCharArray(LGFileLexer._serializedATN));
		}

		return LGFileLexer.__ATN;
	}

public static get _ATN(): ATN {
		if (!mongoLexer.__ATN) {
			mongoLexer.__ATN = new ATNDeserializer().deserialize(Utils.toCharArray(mongoLexer._serializedATN));
		}

		return mongoLexer.__ATN;
	}

public static get _ATN(): ATN {
		if (!Java8Lexer.__ATN) {
			Java8Lexer.__ATN = new ATNDeserializer().deserialize(Utils.toCharArray(Java8Lexer._serializedATN));
		}

		return Java8Lexer.__ATN;
	}

static get _ATN() {
        if (!TomLexer.__ATN) {
            TomLexer.__ATN = new ATNDeserializer_1.ATNDeserializer().deserialize(Utils.toCharArray(TomLexer._serializedATN));
        }
        return TomLexer.__ATN;
    }
}