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: setting.rb
    path of file: ./repos/bluedoc/app/models
    
    the code of the file until where you have to start completion: # frozen_string_literal: true

# RailsSettings Model
class Setting < RailsSettings::Base
  field :host, type: :string, default: (ENV["APP_
    
    def valid_user_email?(email)
      return false if email.blank?
      return true if user_email_suffixes.blank?

      found = false

      user_email_suffixes.each do |suffix|
        if email.downcase.end_with?(suffix.downcase)
          found = true
          break
        end
      end