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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def attach(self, endpoints, serverish):
 """ Attach a socket to zero or more endpoints. If endpoints is not null, parses as list of ZeroMQ endpoints, separated by commas, and prefixed by '@' (to bind the socket) or '>' (to connect the socket). Returns 0 if all endpoints were valid, or -1 if there was a syntax error. If the endpoint does not start with '@' or '>', the serverish argument defines whether it is used to bind (serverish = true) or connect (serverish = false). """

        return lib.zsock_attach(self._as_parameter_, endpoints, serverish)