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: collection_test.rb
    path of file: ./repos/u-case/test/micro/cases/safe/flow
    
    the code of the file until where you have to start completion: require 'ostruct'
require 'test_helper'
require 'support/steps'

class Micro::Cases::Safe::Flow::CollectionTest < Minitest::Tes
    
  def test_result_must_be_a_failure
    EXAMPLES.map(&:flow).each do |flow|
      result = flow.call(numbers: %w[1 1 2 a 3 4])

      assert_failure_result(result, value: { message: 'numbers must contain only numeric types' })
    end
  end