# File lib/sqs/right_sqs.rb, line 267
      def grantees(grantee_email_address=nil, permission = nil)
        hash = @sqs.interface.list_grants(@url, grantee_email_address, permission)
        grantees = []
        hash.each do |key, value|
          grantees << Grantee.new(self, grantee_email_address, key, value[:name], value[:perms])
        end
        if grantee_email_address
          grantees.blank? ? nil : grantees.shift
        else
          grantees
        end
      end