demo_human workflow fails expecting provider.

[culling]

On loading the demo_human workflow and running with a task prompt the workflow throws the following error.
Workflow execution error: Design validation failed for 'yaml_instance\demo_human.yaml': - root.graph.nodes[0].config.provider: expected string

[zxrys]

We apologize, this issue was caused by a failure to update our configuration in a timely manner during development. It has now been fixed in the PR #552 . Please pull the latest code and try again.