code: def Conference(self, Id=0):
          
          o = Conference(self, Id)
          if Id <= 0 or not o.Calls:
              raise SkypeError(0, 'Unknown conference')
          return o
docs: Queries a call conference object.
  
          :Parameters:
            Id : int
              Conference Id.
  
          :return: A conference object.
          :rtype: `Conference`