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: tcp.rb
    path of file: ./repos/metasploit-framework/lib/msf/core/exploit/remote
    
    the code of the file until where you have to start completion: # -*- coding: binary -*-

module Msf

module EvasiveTCP
  attr_accessor :_send_size, :_send_dela
    
  def write(buf, opts={})

    return super(buf, opts) if not @evasive

    ret = 0
    idx = 0
    len = @_send_size || buf.length

    while(idx < buf.length)

      if(@_send_delay and idx > 0)
        ::IO.select(nil, nil, nil, @_send_delay)
      end