GetPublisher.
        Get a specific service hooks publisher.
        :param str publisher_id: ID for a publisher.
        :rtype: :class:`<Publisher> <azure.devops.v5_0.service_hooks.models.Publisher>`

def get_publisher(self, publisher_id):
        """GetPublisher.
        Get a specific service hooks publisher.
        :param str publisher_id: ID for a publisher.
        :rtype: :class:`<Publisher> <azure.devops.v5_0.service_hooks.models.Publisher>`
        """
        route_values = {}
        if publisher_id is not None:
            route_values['publisherId'] = self._serialize.url('publisher_id', publisher_id, 'str')
        response = self._send(http_method='GET',
                              location_id='1e83a210-5b53-43bc-90f0-d476a4e5d731',
                              version='5.0',
                              route_values=route_values)
        return self._deserialize('Publisher', response)