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**To update a flow**

The following ``update-flow-template`` example updates a flow (workflow). The value of ``MyFlowDefinition`` is the GraphQL that models the flow. ::

    aws iotthingsgraph update-flow-template \
        --id "urn:tdm:us-west-2/123456789012/default:Workflow:MyFlow" \
        --definition language=GRAPHQL,text="MyFlowDefinition"

Output::

    {
        "summary": {
            "createdAt": 1559248067.545,
            "id": "urn:tdm:us-west-2/123456789012/default:Workflow:MyFlow",
            "revisionNumber": 2
        }
    }

For more information, see `Working with Flows <https://docs.aws.amazon.com/thingsgraph/latest/ug/iot-tg-workflows.html>`__ in the *AWS IoT Things Graph User Guide*.