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_permit_attributes.rb
    path of file: ./repos/brakeman/lib/brakeman/checks
    
    the code of the file until where you have to start completion: require 'brakeman/checks/base_check'

class Brakeman::CheckPermitAttributes < Brake
    
  def warn_on_permit_key result, key, confidence = nil
    warn :result => result,
      :warning_type => "Mass Assignment",
      :warning_code => :dangerous_permit_key,
      :message => "Potentially dangerous key allowed for mass assignment",
      :confidence => (confidence || SUSPICIOUS_KEYS[key.value]),
      :user_input => key,
      :cwe_id => [915]
  end