code: def _draw_lines(data, ax, **params):
      
      color = to_rgba(data['color'].iloc[0], data['alpha'].iloc[0])
      join_style = _get_joinstyle(data, params)
      lines = mlines.Line2D(data['x'],
                            data['y'],
                            color=color,
                            linewidth=data['size'].iloc[0],
                            linestyle=data['linetype'].iloc[0],
                            zorder=params['zorder'],
                            **join_style)
      ax.add_artist(lines)
docs: Draw a path with the same characteristics from the
      first point to the last point