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: dig.rb
    path of file: ./repos/puppet/lib/puppet/functions
    
    the code of the file until where you have to start completion: # frozen_string_literal: true

# Returns a value for a sequence of given keys/indexes into a structure, such as
# an array or hash.
#
# This function is used to "dig into" a complex data structure by
# using a sequence of keys / indexes to access a value from which
# the next key/index is accessed recursively.
#
# The first encountered `undef` value or key stops the "dig" and `undef` is returned.
#
# 
    
  def dig(data, *args)
    walked_path = []
    args.reduce(data) do |d, k|
      return nil if d.nil? || k.nil?

      unless d.is_a?(Array) || d.is_a?(Hash)
        t = Puppet::Pops::Types::TypeCalculator.infer(d)
        msg = _("The given data does not contain a Collection at %{walked_path}, got '%{type}'") % { walked_path: walked_path, type: t }
        error_data = Puppet::DataTypes::Error.new(
          msg,
          'SLICE_ERROR',
          { 'walked_path' => walked_path, 'value_type' => t },
          'EXPECTED_COLLECTION'
        )
        raise Puppet::ErrorWithData.new(error_data, msg)
      end

      walked_path << k
      if d.is_a?(Array) && !k.is_a?(Integer)
        t = Puppet::Pops::Types::TypeCalculator.infer(k)
        msg = _("The given data requires an Integer index at %{walked_path}, got '%{type}'") % { walked_path: walked_path, type: t }
        error_data = Puppet::DataTypes::Error.new(
          msg,
          'SLICE_ERROR',
          { 'walked_path' => walked_path, 'index_type' => t },
          'EXPECTED_INTEGER_INDEX'
        )
        raise Puppet::ErrorWithData.new(error_data, msg)
      end
      d[k]
    end