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: dependency_set_updater.rb
    path of file: ./repos/dependabot-core/gradle/lib/dependabot/gradle/file_updater
    
    the code of the file until where you have to start completion: # typed: true
# frozen_string_literal: true

require "dependabot/gradle/file_parser"
require "dependabot/gradle/file_updater"

module Dependabot
  module Gradle
    class FileUpdater
      class DependencySetUpdater
        def initialize(dependency_files:)
        
    
        def original_declaration_string(dependency_set, buildfile)
          regex = Gradle::FileParser::DEPENDENCY_SET_DECLARATION_REGEX
          dependency_sets = []
          buildfile.content.scan(regex) do
            dependency_sets << Regexp.last_match.to_s
          end

          dependency_sets.find do |mtch|
            next unless mtch.include?(dependency_set[:group])

            mtch.include?(dependency_set[:version])
          end
        end