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: credential_account_serializer.rb
    path of file: ./repos/mastodon/app/serializers/rest
    
    the code of the file until where you have to start completion: # frozen_string_literal: true

class REST::CredentialAccountSerializer < REST::AccountSerializer
  attributes :source

  has_one :role, serializer: REST::RoleSerializer

  def source
    user = object.user

  
    
  def source
    user = object.user

    {
      privacy: user.setting_default_privacy,
      sensitive: user.setting_default_sensitive,
      language: user.setting_default_language,
      note: object.note,
      fields: object.fields.map(&:to_h),
      follow_requests_count: FollowRequest.where(target_account: object).limit(40).count,
      hide_collections: object.hide_collections,
      discoverable: object.discoverable,
      indexable: object.indexable,
    }
  end