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: path.rb
    path of file: ./repos/spyke/lib/spyke
    
    the code of the file until where you have to start completion: require 'addressable/template'
require 'spyke/rfc_converter'

module Spyke
  class InvalidPathError < StandardError; end
  class P
    
      def variables_with_values
        @params.map do |key, value|
          key if value.present?
        end.compact
      end

      def required_variables
        variables - optional_variables
      end

      def optional_variables
        @pattern.scan(/\(\/?:(\w+)\)/).flatten.map(&:to_sym)
      end
  end