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: repository_maintenance_stat_worker.rb
    path of file: ./repos/libraries.io/app/workers
    
    the code of the file until where you have to start completion: # frozen_string_literal: true

class Repository
    
  def self.enqueue(repo_id, priority: :medium)
    queue_name = "repo_maintenance_stat"
    case priority
    when :low
      queue_name = "repo_maintenance_stat_low"
    when :medium
      queue_name = "repo_maintenance_stat"
    when :high
      queue_name = "repo_maintenance_stat_high"
    else
      raise ArgumentError, "Unknown priority! Please set to :low :medium or :high"
    end