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

require "toml-rb"
require "open3"
require "dependabot/git_commit_checker"
require "dependabot/cargo/file_updater"
require "dependabot/cargo/file_updater/manifest_updater"
require "dependabot/cargo/file_parser"
require "dependabot/shared_helpers"
module Dependabot
  module Cargo
    class FileUpdater
      class 
    
        def remove_duplicate_lockfile_entries(lockfile_content)
          # Loop through the lockfile entries looking for duplicates. Replace
          # any that are found
          lockfile_entries = []
          lockfile_content.scan(LOCKFILE_ENTRY_REGEX) do
            lockfile_entries << Regexp.last_match.to_s
          end
          lockfile_entries
            .select { |e| lockfile_entries.count(e) > 1 }.uniq
            .each do |entry|
              (lockfile_entries.count(entry) - 1)
                .times { lockfile_content = lockfile_content.sub(entry, "") }
            end

          # Loop through the lockfile checksums looking for duplicates. Replace
          # any that are found
          lockfile_checksums = []
          lockfile_content.scan(LOCKFILE_CHECKSUM_REGEX) do
            lockfile_checksums << Regexp.last_match.to_s
          end
          lockfile_checksums
            .select { |e| lockfile_checksums.count(e) > 1 }.uniq
            .each do |cs|
              (lockfile_checksums.count(cs) - 1)
                .times { lockfile_content = lockfile_content.sub("\n#{cs}", "") }
            end

          lockfile_content
        end