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: sql_tracker.rb
    path of file: ./repos/sql_tracker/lib
    
    the code of the file until where you have to start completion: require 'sql_tracker/config'
require 'sql_tracker/handler'
require 'sql_tracker/report'

module SqlTracker
  def self.initialize!
    raise 
    
  def self.track
    config = SqlTracker::Config.apply_defaults.new
    config.enabled = true
    handler = SqlTracker::Handler.new(config)
    handler.subscribe
    yield
    handler.unsubscribe
    handler.data
  end