'Fetch a WorkflowInstance
:returns: Fetched WorkflowInstance
:rtype: twilio.rest.taskrouter.v1.workspace.workflow.WorkflowInstance'

def fetch(self):

    params = values.of({})
    payload = self._version.fetch('GET', self._uri, params=params)
    return WorkflowInstance(self._version, payload, workspace_sid=self._solution['workspace_sid'], sid=self._solution['sid'])
