<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:

def _send_pub(self, load):
        '''
        Take a load and send it across the network to connected minions
        '''
        for transport, opts in iter_transport_opts(self.opts):
            chan = salt.transport.server.PubServerChannel.factory(opts)
            chan.publish(load)