renderTitleLabel (renderTitleLabel) {
        if (!arguments.length) {
            return this._renderTitleLabel;
        }
        this._renderTitleLabel = renderTitleLabel;
        return this;
    }
Turn on/off Title label rendering (values) using SVG style of text-anchor 'end'.
@param {Boolean} [renderTitleLabel=false]
@returns {Boolean|RowChart}