ruby_module.rb

module GuidesHelper
  def breadcrumb(topic:, title:)
    "#{topic} / #{title}"
  end
end

def breadcrumb(topic:, title:)
  "oops"
end

class Guide
  include GuidesHelper
  
  def initialize(topic:, title:, content:)
    @topic = topic
    @title = title
    @content = content
  end
  
  def page_render
    puts breadcrumb(topic: @topic, title: @title)
    puts @content
  end
end

g = Guide.new(topic: 'Rails', title: 'My Cool Title', content: 'Some content')
g.page_render