# File lib/taps/operation.rb, line 69
  def store_session
    file = "#{file_prefix}_#{Time.now.strftime("%Y%m%d%H%M")}.dat"
    puts "\nSaving session to #{file}.."
    File.open(file, 'w') do |f|
      f.write(OkJson.encode(to_hash))
    end
  end