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: echo.rb
    path of file: ./repos/metasploit-framework/modules/encoders/cmd
    
    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::Encoder
  Rank = GoodRanking

  def initialize
    super(
      'Name'          
    
  def initialize
    super(
      'Name'             => 'Echo Command Encoder',
      'Description'      => %q{
        This encoder uses echo and backlash escapes to avoid commonly restricted characters.
      },
      'Author'           => 'hdm',
      'Arch'             => ARCH_CMD,
      'Platform'         => %w[ linux unix ],
      'EncoderType'      => Msf::Encoder::Type::CmdPosixEcho)
  end