old_contents: """Discover DLNA services."""
  from . import SSDPDiscoverable
  
  
  class Discoverable(SSDPDiscoverable):
      """Add support for discovering IGD services."""
  
      def get_entries(self):
          """Get all the IGD service uPnP entries."""
          return \
              self.find_by_st(
                  "urn:schemas-upnp-org:device:InternetGatewayDevice:1") + \
              self.find_by_st(
                  "urn:schemas-upnp-org:device:InternetGatewayDevice:2")
  
new_contents: """Discover IGD services."""
  from . import SSDPDiscoverable
  
  
  class Discoverable(SSDPDiscoverable):
      """Add support for discovering IGD services."""
  
      def get_entries(self):
          """Get all the IGD service uPnP entries."""
          return \
              self.find_by_st(
                  "urn:schemas-upnp-org:device:InternetGatewayDevice:1") + \
              self.find_by_st(
                  "urn:schemas-upnp-org:device:InternetGatewayDevice:2")
  
subject: Fix igd module docstring (#212)