def create(self, friendly_name, configuration,
               assignment_callback_url=values.unset,
               fallback_assignment_callback_url=values.unset,
               task_reservation_timeout=values.unset):
        """
        Create a new WorkflowInstance

        :param unicode friendly_name: A string representing a human readable name for this Workflow.
        :param unicode configuration: JSON document configuring the rules 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 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: Newly created WorkflowInstance
        :rtype: twilio.rest.taskrouter.v1.workspace.workflow.WorkflowInstance
        """
        data = values.of({
            'FriendlyName': friendly_name,
            'Configuration': configuration,
            'AssignmentCallbackUrl': assignment_callback_url,
            'FallbackAssignmentCallbackUrl': fallback_assignment_callback_url,
            'TaskReservationTimeout': task_reservation_timeout,
        })

        payload = self._version.create(
            'POST',
            self._uri,
            data=data,
        )

        return WorkflowInstance(self._version, payload, workspace_sid=self._solution['workspace_sid'], )
Create a new WorkflowInstance

        :param unicode friendly_name: A string representing a human readable name for this Workflow.
        :param unicode configuration: JSON document configuring the rules 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 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: Newly created WorkflowInstance
        :rtype: twilio.rest.taskrouter.v1.workspace.workflow.WorkflowInstance