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: define_constant.rb
    path of file: ./repos/nobrainer/spec/support
    
    the code of the file until where you have to start completion: require 'set'

module DefineConstantMacros
  def define_module(mod_name, &block)
    mod = Module.new
    mod.class_eval(&block) if block_given?
    Object.const_set(mod_name, mod)
  end

  def 
    
  def define_class(class_name, base = Object, &block)
    name = class_name.to_s.split("::")
    mod, klass_name = if name.length > 1
      module_name = name.first
      klass_name = name.last

      if Object.const_defined?(module_name)
        mod = Object.const_get(module_name)
      else
        mod = Module.new
        Object.const_set(module_name, mod)
      end