def users_favorites(*args)
      options = args.extract_options!.merge(:client_id => api_key)
      args[1].nil? ? (response = conn.get("/users/#{args[0]}/favorites.json") { |req| req.params = options }) : (response = conn.get("/users/#{args[0]}/favorites/#{args[1]}.json") { |req| req.params = options })
      args.nil? ? response.body.send(sym) : response.body
    end
def users_favorites(*args)
      options = args.extract_options!.merge(:client_id => api_key)
      args[1].nil? ? (response = conn.get("/users/#{args[0]}/favorites.json") { |req| req.params = options }) : (response = conn.get("/users/#{args[0]}/favorites/#{args[1]}.json") { |req| req.params = options })
      args.nil? ? response.body.send(sym) : response.body
    end
GET	/users/{id}/favorites	users favorites
 GET	/users/{id}/favorites/{id}	track favorited by the user