# File lib/memoist.rb, line 41
  def self.escape_punctuation(string)
    string = string.is_a?(String) ? string.dup : string.to_s

    return string unless string.end_with?('?'.freeze, '!'.freeze)

    # A String can't end in both ? and !
    if string.sub!(/\?\Z/, '_query'.freeze)
    else
      string.sub!(/!\Z/, '_bang'.freeze)
    end
    string
  end