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: board.rb
    path of file: ./repos/binda/app/models/binda
    
    the code of the file until where you have to start completion: module Binda
  class Board < ApplicationRecord

  	include Fi
    
		def self.remove_orphans
			Board
				.includes(:structure)
				.where(binda_structures: {id: nil})
				.each do |b|
				b.destroy!
				puts "Binda::Board with id ##{b.id} successfully destroyed"
			end
    end