SugarCRM Rest API: Get Documents from Contracts -

sugar crm rest api: http://support.sugarcrm.com/02_documentation/04_sugar_developer/sugar_developer_guide_7.5/70_api/web_services/20_examples/v10/module_record_link_link_get/

i trying list of documents belongs specific contract using api call call(sugarcrm url + '/contracts/' + contract.id +'/link/documents','get')

but { "error": "not_found", "error_message": "could not find relationship named: documents" }

but when log in sugar crm able find list of documents specific contract.

the link name between contracts module , documents module contracts_documents

it work url: (rest/v10/contracts/<contractid>/link/contracts_documents)