code: def get(self, identity):
          
          return DocumentPermissionContext(
              self._version,
              service_sid=self._solution['service_sid'],
              document_sid=self._solution['document_sid'],
              identity=identity,
          )
docs: Constructs a DocumentPermissionContext
  
          :param identity: Identity of the user to whom the Sync Document Permission applies.
  
          :returns: twilio.rest.sync.v1.service.document.document_permission.DocumentPermissionContext
          :rtype: twilio.rest.sync.v1.service.document.document_permission.DocumentPermissionContext