old_contents: """Cancel Network Vlan."""
  # :license: MIT, see LICENSE for more details.
  
  import click
  
  import SoftLayer
  from SoftLayer.CLI import environment
  from SoftLayer.CLI import exceptions
  from SoftLayer.CLI import formatting
  
  
  @click.command()
  @click.argument('identifier')
  @environment.pass_env
  def cli(env, identifier):
      """Cancel network vlan."""
  
      mgr = SoftLayer.NetworkManager(env.client)
  
      if not (env.skip_confirmations or formatting.no_going_back(identifier)):
          raise exceptions.CLIAbort('Aborted')
  
      reasons = mgr.get_cancel_failure_reasons(identifier)
      if len(reasons) > 0:
          raise exceptions.CLIAbort(reasons)
      item = mgr.get_vlan(identifier).get('billingItem')
      if item:
          mgr.cancel_item(item.get('id'),
                          True,
                          'Cancel by cli command',
                          'Cancel by cli command')
      else:
          raise exceptions.CLIAbort(
              "VLAN is an automatically assigned and free of charge VLAN,"
              " it will automatically be removed from your account when it is empty")
  
new_contents: """Cancel Network Vlan."""
  # :license: MIT, see LICENSE for more details.
  
  import click
  
  import SoftLayer
  from SoftLayer.CLI import environment
  from SoftLayer.CLI import exceptions
  from SoftLayer.CLI import formatting
  
  
  @click.command()
  @click.argument('identifier')
  @environment.pass_env
  def cli(env, identifier):
      """Cancel network VLAN."""
  
      mgr = SoftLayer.NetworkManager(env.client)
  
      if not (env.skip_confirmations or formatting.no_going_back(identifier)):
          raise exceptions.CLIAbort('Aborted')
  
      reasons = mgr.get_cancel_failure_reasons(identifier)
      if len(reasons) > 0:
          raise exceptions.CLIAbort(reasons)
      item = mgr.get_vlan(identifier).get('billingItem')
      if item:
          mgr.cancel_item(item.get('id'),
                          True,
                          'Cancel by cli command',
                          'Cancel by cli command')
      else:
          raise exceptions.CLIAbort(
              "VLAN is an automatically assigned and free of charge VLAN,"
              " it will automatically be removed from your account when it is empty")
  
subject: fix the last code review comments