class RubyXL::Border

def get_edge_style(direction)

def get_edge_style(direction)
  edge = self.send(direction)
  edge && edge.style
end

def set_edge_style(direction, style)

def set_edge_style(direction, style)
  self.send("#{direction}=", RubyXL::BorderEdge.new(:style => style))
end