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: ticket.rb
    path of file: ./repos/zammad/app/models
    
    the code of the file until where you have to start completion: # Copyright (C) 2012-2024 Zammad Foundation, https://zammad-foundation.org/

class Ticket < ApplicationModel
  include CanBeImported
  include HasActivityStreamLog
  include ChecksClientNotification
  include CanCsvImport
  include ChecksHtmlSanitized
  include ChecksHumanChanges
  include HasHistory
  include HasTags
  include HasSearchIndexBackend
  include HasOnlineNotifications
  include HasLinks
  include HasObjectManagerAttributes
  include HasTaskbars
  include Ticket::CallsStatsTicketReopenLog
  include Ticket::EnqueuesUserTicketCounterJob
  include Ticket::ResetsPendingTimeSeconds
  include Ticket::SetsCloseTime
  include Ticket::SetsOnlineNotificationSeen
  include Ticket::TouchesAssociations
  include Ticket::TriggersSubscriptions
  include Ticket::ChecksReopenAfterCertainTime

  include ::Ticket::Escalation
  include ::Ticket
    
  def self.process_pending
    result = []

    # process pending action tickets
    pending_action = Ticket::StateType.find_by(name: 'pending action')
    ticket_states_pending_action = Ticket::State.where(state_type_id: pending_action)
                                                .where.not(next_state_id: nil)
    if ticket_states_pending_action.present?
      next_state_map = {}
      ticket_states_pending_action.each do |state|
        next_state_map[state.id] = state.next_state_id
      end

      tickets = where(state_id: next_state_map.keys)
                .where('pending_time <= ?', Time.zone.now)

      tickets.find_each(batch_size: 500) do |ticket|
        Transaction.execute do
          ticket.state_id      = next_state_map[ticket.state_id]
          ticket.updated_at    = Time.zone.now
          ticket.updated_by_id = 1
          ticket.save!
        end
        result.push ticket
      end
    end