An example of calling proto workflows, queries, signals, and updates hosted by a worker in one namespace from a workflow in a different namespace (or cluster).

In an initial terminal:

1. Start temporal

   temporal server start-dev \
       --dynamic-config-value "frontend.enableUpdateWorkflowExecution=true" \
       --dynamic-config-value "frontend.enableUpdateWorkflowExecutionAsyncAccepted=true"
2. In a different terminal, create example namespace and run the worker

   temporal operator namespace create example
   go run ./examples/xns/... worker
3. In a different terminal, execute an xns workflow

   go run ./examples/xns/... xns provision-foo --name test