# File lib/generators/audited/templates/add_version_to_auditable_index.rb, line 2
  def self.up
    if index_exists?(:audits, [:auditable_type, :auditable_id], name: index_name)
      remove_index :audits, name: index_name
      add_index :audits, [:auditable_type, :auditable_id, :version], name: index_name
    end
  end