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: configuration.rb
    path of file: ./repos/reports_kit/lib/reports_kit
    
    the code of the file until where you have to start completion: module ReportsKit
  class Configuration
    attr_accessor :autocomplete_results_method, :cache_duration, :cache_store, :context_rec
    
    def initialize
      self.autocomplete_results_method = nil
      self.cache_duration = 5.minutes
      self.cache_store = nil
      self.custom_methods = {}
      self.default_dimension_limit = 30
      self.default_properties = nil
      self.first_day_of_week = :sunday
      self.modify_context_params_method = nil
      self.properties_method = DEFAULT_PROPERTIES_METHOD
      self.report_filename_method = nil
      self.use_concurrent_queries = false
    end