old_contents: #!/usr/bin/env python3
  
  from clint.textui import puts, indent, colored
  import click
  
  from client import Client
  
  agent_client = None
  
  @click.group()
  @click.option('--host', default='localhost')
  @click.option('--port', default=5001)
  @click.pass_obj
  def client(obj, host, port):
      obj['client'] = Client(host, port)
  
  @client.command()
  @click.pass_obj
  def status(obj):
      obj['client'].status()
  
  @client.command()
  @click.pass_obj
  @click.argument("container_host", nargs=1)
  @click.argument("container_ids", nargs=-1)
  def container_status(obj, container_host, container_ids):
      for cid in container_ids:
          obj['client'].container_status(container_host, cid)
      
  @client.command()
  @click.pass_obj
  @click.option("--image", default=None)
  @click.argument("service", nargs=1)
  def start(obj, service, image):
      obj['client'].start(service, image)
  
  @client.command()
  @click.pass_obj
  @click.option("--all", default=False, is_flag=True)
  @click.option("--service", default=None)
  @click.option("--host", default=None)
  @click.argument("container_ids", nargs=-1)
  def stop(obj, all, service, host, container_ids):
      if service != None:
          obj['client'].stop_service(service)
      if all:
          obj['client'].stop_all(host)
      else:
          obj['client'].stop(host, container_ids)
  
  @client.command()
  @click.pass_obj
  @click.argument("container_host", nargs=1)
  @click.argument("container_ids", nargs=-1)
  def migrate(obj, container_host, container_ids):
      obj['client'].migrate(container_host, container_ids)
  
  @client.command()
  @click.pass_obj
  @click.argument("node", nargs=1)
  def node_status(obj, node):
      obj['client'].node_status(node)
  
  @client.command()
  @click.pass_obj
  @click.argument("strategy", nargs=1, default=None)
  @click.option("--opt", default=None, multiple=True)
  def balance(obj, strategy, opts):
      obj['client'].balance(strategy, opts)
  
  @client.command()
  @click.pass_obj
  def nodes_status(obj):
      obj['client'].nodes_status()
  
  if __name__ == '__main__':
      client(obj={})
  
new_contents: #!/usr/bin/env python3
  
  from clint.textui import puts, indent, colored
  import click
  
  from client import Client
  
  agent_client = None
  
  @click.group()
  @click.option('--host', default='localhost')
  @click.option('--port', default=5001)
  @click.pass_obj
  def client(obj, host, port):
      obj['client'] = Client(host, port)
  
  @client.command()
  @click.pass_obj
  def status(obj):
      obj['client'].status()
  
  @client.command()
  @click.pass_obj
  @click.argument("container_host", nargs=1)
  @click.argument("container_ids", nargs=-1)
  def container_status(obj, container_host, container_ids):
      for cid in container_ids:
          obj['client'].container_status(container_host, cid)
      
  @client.command()
  @click.pass_obj
  @click.option("--image", default=None)
  @click.argument("service", nargs=1)
  def start(obj, service, image):
      obj['client'].start(service, image)
  
  @client.command()
  @click.pass_obj
  @click.option("--all", default=False, is_flag=True)
  @click.option("--service", default=None)
  @click.option("--host", default=None)
  @click.argument("container_ids", nargs=-1)
  def stop(obj, all, service, host, container_ids):
      if service != None:
          obj['client'].stop_service(service)
      if all:
          obj['client'].stop_all(host)
      else:
          obj['client'].stop(host, container_ids)
  
  @client.command()
  @click.pass_obj
  @click.argument("container_host", nargs=1)
  @click.argument("container_ids", nargs=-1)
  def migrate(obj, container_host, container_ids):
      obj['client'].migrate(container_host, container_ids)
  
  @client.command()
  @click.pass_obj
  @click.argument("node", nargs=1)
  def node_status(obj, node):
      obj['client'].node_status(node)
  
  @client.command()
  @click.pass_obj
  @click.argument("strategy", nargs=1, default=None)
  @click.option("--opt", multiple=True)
  def balance(obj, strategy, opt):
      obj['client'].balance(strategy, opt)
  
  @client.command()
  @click.pass_obj
  def nodes_status(obj):
      obj['client'].nodes_status()
  
  if __name__ == '__main__':
      client(obj={})
  
subject: Fix balance command