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: base.rb
    path of file: ./repos/vets-api/modules/claims_api/lib/claims_api/v1/poa_pdf_constructor
    
    the code of the file until where you have to start completion: # frozen_string_literal: true

require 'pdf_fill/filler'

module ClaimsApi
  module V1
    module PoaPdfConstructor
      class Base
        def initialize
          @page1_path = nil
          @page2_path = nil
  
    
        def stamp(file_path, stamp_path, delete_source: true)
          output_path = "#{::Common::FileHelpers.random_file_path}.pdf"

          PdfFill::Filler::PDF_FORMS.stamp(file_path, stamp_path, output_path)
          File.delete(file_path) if delete_source

          output_path
        rescue
          ::Common::FileHelpers.delete_file_if_exists(output_path)
          raise
        end