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: sshkit_with_ext.rb
    path of file: ./repos/kamal/lib/kamal
    
    the code of the file until where you have to start completion: require "sshkit"
require "sshkit/dsl"
require 
    
      def start_with_concurrency_limit(*args)
        if self.class.start_semaphore
          self.class.start_semaphore.acquire do
            Net::SSH.start(*args)
          end
        else
          Net::SSH.start(*args)
        end