def get_manual_journals(options = {})
      request_params = {}
      request_params[:ManualJournalID]  = options[:manual_journal_id] if options[:manual_journal_id]
      request_params[:ModifiedAfter]      = options[:modified_since] if options[:modified_since]

      response_xml = http_get(@client, "#{@xero_url}/ManualJournals", request_params)

      parse_response(response_xml, {:request_params => request_params}, {:request_signature => 'GET/ManualJournals'})
    end
def get_manual_journals(options = {})
      request_params = {}
      request_params[:ManualJournalID]  = options[:manual_journal_id] if options[:manual_journal_id]
      request_params[:ModifiedAfter]      = options[:modified_since] if options[:modified_since]

      response_xml = http_get(@client, "#{@xero_url}/ManualJournals", request_params)

      parse_response(response_xml, {:request_params => request_params}, {:request_signature => 'GET/ManualJournals'})
    end
Retrieves all manual journals from Xero

 Usage : get_manual_journal
         getmanual_journal(:manual_journal_id => " 297c2dc5-cc47-4afd-8ec8-74990b8761e9")

 Note  : modified_since is in UTC format (i.e. Brisbane is UTC+10)