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: element_spec.rb
    path of file: ./repos/arbre/spec/arbre/unit
    
    the code of the file until where you have to start completion: # frozen_string_literal: true
require 'spec_helper'

describe Arbre::Element do

  let(:element){ described_class.new }

  context "when initialized" do

    it "has no children" do
  
    
    def suppressing_27_warning
      return yield unless Gem::Version.new(RUBY_VERSION) >= Gem::Version.new("2.7.a")

      begin
        old_verbose = $VERBOSE
        $VERBOSE = nil
        yield
      ensure
        $VERBOSE = old_verbose
      end