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: backoff.rb
    path of file: ./repos/lambdakiq/lib/lambdakiq
    
    the code of the file until where you have to start completion: module Lambdakiq
  class Backoff

    MAX_VISIBILITY_T
    
    def backoff
      case count
      when 1 then 30
      when 2 then 46
      when 3 then 76
      when 4 then 156
      when 5 then 346
      when 6 then 730
      when 7 then 1416
      when 8 then 2536
      when 9 then 4246
      when 10 then 6726
      when 11 then 10180
      when 12 then 14836
      end