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: check_force_ssl.rb
    path of file: ./repos/brakeman/lib/brakeman/checks
    
    the code of the file until where you have to start completion: class Brakeman::CheckForceSSL < Brakeman::BaseCheck
  Brakeman::Checks.add_optional self

  @description = "Check that force_ssl setting is enabled 
    
  def run_check
    return if tracker.config.rails.empty? or tracker.config.rails_version.nil?
    return if tracker.config.rails_version < "3.1.0"

    force_ssl = tracker.config.rails[:force_ssl]

    if false? force_ssl or force_ssl.nil?
      line = if sexp? force_ssl
               force_ssl.line
             else
               1
             end