# File lib/sqs/right_sqs_interface.rb, line 246
    def add_grant(queue_url, grantee_email_address, permission = nil)
      req_hash = generate_request('AddGrant', 
                                  'Grantee.EmailAddress' => grantee_email_address,
                                  'Permission'           => permission,
                                  :queue_url             => queue_url)
      request_info(req_hash, SqsStatusParser.new(:logger => @logger))
    rescue
      on_exception
    end