code: def Attach(self, Protocol=5, Wait=True):
          
          try:
              self._Api.protocol = Protocol
              self._Api.attach(self.Timeout, Wait)
          except SkypeAPIError:
              self.ResetCache()
              raise
docs: Establishes a connection to Skype.
  
          :Parameters:
            Protocol : int
              Minimal Skype protocol version.
            Wait : bool
              If set to False, blocks forever until the connection is established. Otherwise, timeouts
              after the `Timeout`.