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: hash_of_symbols_and_strings.rb
    path of file: ./repos/kitchen-terraform/lib/kitchen/terraform/config_attribute_type
    
    the code of the file until where you have to start completion: # frozen_string_literal: true

# Copyright 2016-2021 Copado NCS LLC
#

    
        def self.apply(attribute:, config_attribute:, default_value:)
          ::Kitchen::Terraform::ConfigAttribute.new(
            attribute: attribute,
            default_value: default_value,
            schema: ::Kitchen::Terraform::ConfigAttributeContract::HashOfSymbolsAndStrings.new,
          ).apply config_attribute: config_attribute

          self
        end