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: comm.rb
    path of file: ./repos/metasploit-framework/lib/msf/core/handler/reverse
    
    the code of the file until where you have to start completion: # -*- coding: binary -*-
require 'rex/socket'

module Msf
module Handl
    
  def select_comm
    rl_comm = datastore['ReverseListenerComm'].to_s
    case rl_comm
    when 'local'
      comm = ::Rex::Socket::Comm::Local
    when /\A-?[0-9]+\Z/
      comm = framework.sessions.get(rl_comm.to_i)
      raise(RuntimeError, "Reverse Listener Comm (Session #{rl_comm}) does not exist") unless comm
      raise(RuntimeError, "Reverse Listener Comm (Session #{rl_comm}) does not implement Rex::Socket::Comm") unless comm.is_a? ::Rex::Socket::Comm
    when nil, ''
      comm = nil
    else
      raise(RuntimeError, "Reverse Listener Comm '#{rl_comm}' is invalid")
    end

    comm
  end

  def via_string(comm)
    comm_used = comm
    comm_used ||= Rex::Socket::Comm::Local

    if comm_used.respond_to?(:type) && comm_used.respond_to?(:sid)
      via = "via the #{comm_used.type} on session #{comm_used.sid}"
    else
      via = ""
    end

    via
  end