You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: susemanager_migration.rb
    path of file: ./repos/uyuni/susemanager/yast
    
    the code of the file until where you have to start completion: # encoding: utf-8

module Yast
  class SusemanagerMigrationClient < Client
    def main
      Yast.import "UI"
      textdomain "susemanager"

      Yast.import "Directory"
      Yast.import "Hostname"
      Yast.import "FileUtils"
      Yast.import "GetInstArgs"
      Yast.import "IP"
      Yast.import "Popup"
      Yast.import "Stage"
      Yast.import "Wizard"

      @args = GetInstArgs.argmap
      @ret = :auto

      @migration_file = Ops.add(Directory.tmpdir, "/susemanager_migration")
      @migration = FileUtils.
    
    def main
      Yast.import "UI"
      textdomain "susemanager"

      Yast.import "Directory"
      Yast.import "Hostname"
      Yast.import "FileUtils"
      Yast.import "GetInstArgs"
      Yast.import "IP"
      Yast.import "Popup"
      Yast.import "Stage"
      Yast.import "Wizard"

      @args = GetInstArgs.argmap
      @ret = :auto

      @migration_file = Ops.add(Directory.tmpdir, "/susemanager_migration")
      @migration = FileUtils.Exists(@migration_file)
      if !@migration
        Builtins.y2milestone(
          "setup from scratch was chosen, skipping this step"
        )
        return deep_copy(@ret)
      end