function _validateStepsParams(match) {
        var count = _convertToNumber(match[1]);

        if (!count.isNumber || count.value < 1 || Math.floor(count.value) !== count.value) {
            return false;
        }

        if (match[2] && match[2] !== "start" && match[2] !== "end") {
            return false;
        }

        return true;
    }
Validate steps function parameters that are not already validated by regex:

@param {RegExp.match} match  RegExp Match object with steps function parameters
                             in array position 1 (and optionally 2).
@return {boolean} true if all parameters are valid, otherwise, false