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: uploads_controller.rb
    path of file: ./repos/mastodon/app/controllers/api/v1/crypto/keys
    
    the code of the file until where you have to start completion: # frozen_string_literal: true

class Api::V1::Crypto::Keys::UploadsController < Api::BaseController
  before_action -> { doorkeeper_authorize! :crypto }
  before_action :require_user!

  def create
    device = Device.find_or_initialize_by(access_token: doorkeeper_token)

    device.transaction do
      device.account = current_account
      device.update!(resource_params[:device])

      if resource_params[:one_time_keys].present
    
  def create
    device = Device.find_or_initialize_by(access_token: doorkeeper_token)

    device.transaction do
      device.account = current_account
      device.update!(resource_params[:device])

      if resource_params[:one_time_keys].present? && resource_params[:one_time_keys].is_a?(Enumerable)
        resource_params[:one_time_keys].each do |one_time_key_params|
          device.one_time_keys.create!(one_time_key_params)
        end
      end
    end

    render json: device, serializer: REST::Keys::DeviceSerializer
  end