"step-group": { type: "workflow-step" annotations: { "category": "Process Control" } description: "A special step that you can declare 'subSteps' in it, 'subSteps' is an array containing any step type whose valid parameters do not include the `step-group` step type itself. The sub steps were executed in parallel." } template: { // no parameters, the nop only to make the template not empty or it's invalid nop: {} }