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: 20230103004613_make_experimental_hashtag_feature_default_for_new_sites.rb
    path of file: ./repos/discourse/db/migrate
    
    the code of the file until where you have to start completion: # frozen_string_literal: true

class MakeExperimentalHashtagFeatureDefaultForNewSites < ActiveRecord::Migration[7.0]
  def up
    settings_insert_query = <<~SQL
      INSERT INTO site_settings (name, data_type, value, created_at, upda
    
  def up
    settings_insert_query = <<~SQL
      INSERT INTO site_settings (name, data_type, value, created_at, updated_at)
      VALUES ('enable_experimental_hashtag_autocomplete', 5, 'f', now(), now())
      ON CONFLICT DO NOTHING
    SQL

    # keep enable_experimental_hashtag_autocomplete disabled for for existing sites
    execute settings_insert_query if Migration::Helpers.existing_site?
  end