def update(self, friendly_name=values.unset,
               assignment_callback_url=values.unset,
               fallback_assignment_callback_url=values.unset,
               configuration=values.unset, task_reservation_timeout=values.unset):
        """
        Update the WorkflowInstance

        :param unicode friendly_name: A string representing a human readable name for this Workflow.
        :param unicode assignment_callback_url: A valid URL for the application that will process task assignment events.
        :param unicode fallback_assignment_callback_url: If the request to the AssignmentCallbackUrl fails, the assignment callback will be made to this URL.
        :param unicode configuration: JSON document configuring the rules for this Workflow.
        :param unicode task_reservation_timeout: An integer value controlling how long in seconds TaskRouter will wait for a confirmation response from your application after assigning a Task to a worker.

        :returns: Updated WorkflowInstance
        :rtype: twilio.rest.taskrouter.v1.workspace.workflow.WorkflowInstance
        """
        return self._proxy.update(
            friendly_name=friendly_name,
            assignment_callback_url=assignment_callback_url,
            fallback_assignment_callback_url=fallback_assignment_callback_url,
            configuration=configuration,
            task_reservation_timeout=task_reservation_timeout,
        )
Update the WorkflowInstance

        :param unicode friendly_name: A string representing a human readable name for this Workflow.
        :param unicode assignment_callback_url: A valid URL for the application that will process task assignment events.
        :param unicode fallback_assignment_callback_url: If the request to the AssignmentCallbackUrl fails, the assignment callback will be made to this URL.
        :param unicode configuration: JSON document configuring the rules for this Workflow.
        :param unicode task_reservation_timeout: An integer value controlling how long in seconds TaskRouter will wait for a confirmation response from your application after assigning a Task to a worker.

        :returns: Updated WorkflowInstance
        :rtype: twilio.rest.taskrouter.v1.workspace.workflow.WorkflowInstance