code: function exports(_selection) {
              _selection.each(function(_data){
                  chartWidth = width - margin.left - margin.right;
                  chartHeight = height - margin.top - margin.bottom;
                  data = cleanData(_data);
  
                  buildColorScale();
                  buildSVG(this);
  
                  if (isHorizontal) {
                      drawHorizontalLegend();
                  } else {
                      drawVerticalLegend();
                  }
  
                  if (highlightedEntryId) {
                      cleanFadedLines();
                      fadeLinesBut(highlightedEntryId);
                  }
              });
          }
docs: This function creates the graph using the selection as container
  @param  {D3Selection} _selection A d3 selection that represents
  the container(s) where the chart(s) will be rendered
  @param {LegendChartData} _data The data to attach and generate the chart