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: base_resource.rb
    path of file: ./repos/avo/lib/avo
    
    the code of the file until where you have to start completion: module Avo
  class
    
    def file_hash
      content_to_be_hashed = ""

      # resource file hash
      resource_path = Rails.root.join("app", "avo", "resources", "#{self.class.name.underscore}.rb").to_s
      if File.file? resource_path
        content_to_be_hashed += File.read(resource_path)
      end