IBM Cloud Language Translator in Mastodon (Not working yet)

error.log

Sep  9 20:44:08 gosomi bundle[782892]: [26a0d58f-e22c-4219-9dcd-6a04f953ced0] method=POST path=/api/v1/statuses/111036983556043247/translate format=html controller=Api::V1::Statuses::TranslationsController action=create status=500 error='NoMethodError: undefined method `model_name' for Request:Class
Sep  9 20:44:08 gosomi bundle[782892]: [26a0d58f-e22c-4219-9dcd-6a04f953ced0]
Sep  9 20:44:08 gosomi bundle[782892]: [26a0d58f-e22c-4219-9dcd-6a04f953ced0] NoMethodError (undefined method `model_name' for Request:Class
Sep  9 20:44:08 gosomi bundle[782892]: [26a0d58f-e22c-4219-9dcd-6a04f953ced0]
Sep  9 20:44:08 gosomi bundle[782892]: [26a0d58f-e22c-4219-9dcd-6a04f953ced0] app/controllers/api/v1/statuses/translations_controller.rb:14:in `create'
Sep  9 20:44:08 gosomi bundle[782892]: [26a0d58f-e22c-4219-9dcd-6a04f953ced0] app/controllers/concerns/localized.rb:11:in `set_locale'
Sep  9 20:44:08 gosomi bundle[782892]: [26a0d58f-e22c-4219-9dcd-6a04f953ced0] lib/mastodon/rack_middleware.rb:9:in `call'

ibmcloud.rb

# frozen_string_literal: true

class TranslationService::IBMCloud < TranslationService
  def initialize(base_url, api_key)
    super()

    @base_url = base_url
    @api_key  = api_key
  end

  def translate(text, source_language, target_language)
    puts 'translate()'
    request(text, source_language, target_language).perform do |res|
      case res.code
      when 429
        raise TooManyRequestsError
      when 456
        raise QuotaExceededError
      when 200...300
        transform_response(res.body_with_limit, source_language)
      else
        raise UnexpectedResponseError
      end
    end
  end

  private

  def request(text, source_language, target_language)
    puts 'request()'
    encoded_api_key = Base64.strict_encode64("apikey:#{@api_key}")
    body = Oj.dump(text: [text], model_id: "#{source_language}-#{target_language}")
    req = Request.new(:post, "#{@base_url}/v3/translate?version=2018-05-01", body: body, allow_local: true)
    req.add_headers('Content-Type': 'application/json')
    req.add_headers('Authorization': "Basic #{encoded_api_key}")
    req
  end

  def transform_response(str, source_language)
    puts 'transform_response()'

    data = Oj.load(str, mode: :strict)
    raise UnexpectedResponseError unless data.is_a?(Hash)

    Translation.new(
      text: json.dig('translations', 0, 'translation'),
      detected_source_language: source_language,
      provider: 'IBM Cloud Language Translator'
    )
  end
end

inflections.rb

# frozen_string_literal: true

# Be sure to restart your server when you modify this file.

# Add new inflection rules using the following format. Inflections
# are locale specific, and you may define rules for as many different
# locales as you wish. All of these examples are active by default:
# ActiveSupport::Inflector.inflections(:en) do |inflect|
#   inflect.plural /^(ox)$/i, '\1en'
#   inflect.singular /^(ox)en/i, '\1'
#   inflect.irregular 'person', 'people'
#   inflect.uncountable %w( fish sheep )
# end

ActiveSupport::Inflector.inflections(:en) do |inflect|
  inflect.acronym 'StatsD'
  inflect.acronym 'OEmbed'
  inflect.acronym 'OStatus'
  inflect.acronym 'ActivityPub'
  inflect.acronym 'PubSubHubbub'
  inflect.acronym 'ActivityStreams'
  inflect.acronym 'JsonLd'
  inflect.acronym 'NodeInfo'
  inflect.acronym 'Ed25519'
  inflect.acronym 'TOC'
  inflect.acronym 'RSS'
  inflect.acronym 'REST'
  inflect.acronym 'URL'
  inflect.acronym 'ASCII'
  inflect.acronym 'DeepL'
  inflect.acronym 'DSL'
  inflect.acronym 'IBMCloud'

  inflect.singular 'data', 'data'
end

translation_service.rb

# frozen_string_literal: true

class TranslationService
  class Error < StandardError; end
  class NotConfiguredError < Error; end
  class TooManyRequestsError < Error; end
  class QuotaExceededError < Error; end
  class UnexpectedResponseError < Error; end

  def self.configured
    if ENV['DEEPL_API_KEY'].present?
      TranslationService::DeepL.new(ENV.fetch('DEEPL_PLAN', 'free'), ENV['DEEPL_API_KEY'])
    elsif ENV['LIBRE_TRANSLATE_ENDPOINT'].present?
      TranslationService::LibreTranslate.new(ENV['LIBRE_TRANSLATE_ENDPOINT'], ENV['LIBRE_TRANSLATE_API_KEY'])
    elsif ENV['IBMCLOUD_LT_API_KEY'].present?
     puts 'TranslationService::IBMCloud.new()'
     TranslationService::IBMCloud.new(ENV['IBMCLOUD_LT_ENDPOINT'], ENV['IBMCLOUD_LT_API_KEY'])
    else
      raise NotConfiguredError
    end
  end

  def self.configured?
    ENV['DEEPL_API_KEY'].present? || ENV['LIBRE_TRANSLATE_ENDPOINT'].present? || ENV['IBMCLOUD_LT_API_KEY'].present?
  end

  def translate(_text, _source_language, _target_language)
    raise NotImplementedError
  end
end