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: read_only_adapter.rb
    path of file: ./repos/seamless_database_pool/spec/test_adapter/active_record/connection_adapters
    
    the code of the file until where you have to start completion: module ActiveRecord
  class Base
    def self.read_only_connection(config)
      real_adapter = config.delete("real_adapter")
      connection = send("#{real_adapter}_
    
          def #{read_method} (*args, &block)
            raise "Not Connected" unless @connected
            result = @connection.send(:#{read_method}, *args, &block)
            def result.read_only?
              true
            end
            result
          end