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: opennms_xxe.rb
    path of file: ./repos/metasploit-framework/modules/auxiliary/gather
    
    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
##

require 'openssl'

class MetasploitModule < Msf::Auxiliary
  inc
    
  def run

    print_status("Logging in to grab a valid session cookie")

    res = send_request_cgi({
      'method' => 'POST',
      'uri' => normalize_uri(target_uri.path, 'j_spring_security_check'),
      'vars_post' => {
        'j_username' => datastore['USERNAME'],
        'j_password' => datastore['PASSWORD'],
        'Login'=> 'Login'
      },
    })

    if res.nil?
      fail_with(Failure::Unreachable, "No response from POST request")
    elsif res.code != 302
      fail_with(Failure::UnexpectedReply, "Non-302 response from POST request")
    end