Set workspace_id for new created board

I can’t get the create_board api functionality to work correctly with regard to setting the workspace_id

I’m creating workspace, boards, and dashboards manually via the GraphQL API using Postman.

According to the documentation I can send in workspace_id as a parameter for create_board

Here is my call, I’m using Postman for this right now. AS you can see I’m sending in workspace_id and its returning null.

Any Idea what I’m doing wrong?