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: picturable.rb
    path of file: ./repos/ekylibre/lib/ekylibre/record/acts
    
    the code of the file until where you have to start completion: module Ekylibre
  module Record
    module Acts
      module Picturable
        def self.included(base)
          base.extend(ClassMethods)
        end

        module ClassMethods
          def has_picture(options = {})
            default_options = {
              url: '/backend/:class/:id/picture/:style',
            
    
          def has_picture(options = {})
            default_options = {
              url: '/backend/:class/:id/picture/:style',
              path: ':tenant/:class/:attachment/:id_partition/:style.:extension',
              styles: {
                thumb: ['64x64>', :jpg],
                identity: ['180x180#', :jpg],
                contact: ['720x720#', :jpg]
              },
              convert_options: {
                thumb:    '-background white -gravity center -extent 64x64',
                identity: '-background white -gravity center -extent 180x180',
                contact: '-background white -gravity center -extent 720x720'
              }
            }
            has_attached_file :picture, default_options.deep_merge(options)
          end