csv(values) {
        return $to.csv(values);
    }
@method formatting.csv
@description
Converts a single value or an array of values into a CSV (comma-separated values) string, with all values formatted
according to their JavaScript type.

When formatting a query, a variable makes use of this method via modifier `:csv` or its alias `:list`.

When `values` is an object that's not `null` or `Array`, its properties are enumerated for the actual values.

@param {Array|Object|value|function} values
Value(s) to be converted, or a function that returns it.

@returns {string}

@see {@link formatting.format format}