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: child_process.rb
    path of file: ./repos/async/fixtures
    
    the code of the file until where you have to start completion: # frozen_string_literal: true

# Released under the MIT License.
# Copyright, 2023, by Samuel Williams.

module ChildProcess
	def self.spawn(code)
		lib
    
	def self.spawn(code)
		lib_path = File.expand_path("../lib", __dir__)
		
		IO.popen(["ruby", "-I#{lib_path}"], "r+", err: [:child, :out]) do |process|
			process.write(code)
			process.close_write
			
			return process.read
		end
	end