ColdFusion - spreadsheetaddrows errors out

When trying to use the includecolumnnames parameter CF throw and error saying the  spreadsheetaddrows function only supports 2 to 6 parameters, but documentation shows 7. Even the example in the spreadsheetaddrows documentation fails:

<cfscript>

    out_fl = "#expandpath("./")#header.xlsx";

        xlobj = SpreadsheetNew("2d_arr_data", true);

        qry_data = queryNew("product, customer, qtr");

        queryAddRow(qry_data, {product:"aniseed syrup", customer="annie", qtr="1"});

        queryAddRow(qry_data, {product:"camembert pierrot", customer="pierre", qtr="2"});

        queryAddRow(qry_data, {product:"scones", customer="connie", qtr="4"});

    datatype = [""];

        spreadsheetAddRows(xlobj, qry_data,1,1,"true",datatype,true);

        cfspreadsheet(action="write", filename="#out_fl#", name="xlobj", overwrite=true);

        cfspreadsheet(action="read", src="#out_fl#", query="qryxl");

        writeDump(qryxl);

</cfscript>