human
Solve the following python programming problem given the following code:
def preload_image(self, image_name) : 
    def _preload(node, zone) : 
        split = node.split () 
        if (len (split) > 0) : 
            node_name = split [0] 
            if (node_name != 'kubernetes-master') : 
                info_log (self.TAG, 'Preloading {0} onto {1}...'.format (image_name, node_name)) 
                docker_cmd = 'sudo gcloud docker pull {0}/{1}'.format (MainSettings.REGISTRY_NAME, image_name) 
                cmd = ['gcloud', 'compute', 'ssh', node_name, '--zone', zone, '--command', '{}'.format (docker_cmd)] 
                return subprocess.Popen (cmd) 
return None 
procs = self._nodes_command (_preload) 
    info_log (_preload.TAG, 'Waiting for preloading to finish...') 
    for proc in procs : 
        if proc : 
            proc.wait () 
info_log (self.TAG, 'Preloaded image {} onto all nodes'.format (image_name)) 
    return True 

    
    

    Fix the buggy line: info_log (_preload.TAG, 'Waiting for preloading to finish...')
assistant
#Here is Python program to fix the buggy line: info_log (_preload.

info_log (self.TAG, 'Waiting for preloading to finish...')