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: subfield_accessors.rb
    path of file: ./repos/facets/work/consider/core/module
    
    the code of the file until where you have to start completion: class Module

  def subfield_accessors(field, subfields)
    subfields.each do |subfield, index|
      define_method
    
  def subfield_accessors(field, subfields)
    subfields.each do |subfield, index|
      define_method(subfield) do
        self.send(field)[index]
      end

      define_method("#{subfield}=") do |value|
        self.send(field)[index] = value
      end
    end
  end