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: snippets_finder.rb
    path of file: ./repos/gitlabhq/app/finders
    
    the code of the file until where you have to start completion: # frozen_string_literal: true

# Finder for retrieving snippets that a user can see, optionally scoped 
    
  def visibility_from_scope
    case params[:scope].to_s
    when 'are_private'
      Snippet::PRIVATE
    when 'are_internal'
      Snippet::INTERNAL
    when 'are_public'
      Snippet::PUBLIC
    end