CWLWorkflowStepObject

The executable shape of a single Workflow step: how its underlying process is invoked (run), how workflow parameters are wired to and from it (in, out), an optional guard condition (when), and scatter/gather behavior (scatter, scatterMethod) for fanning the step out over array inputs. Used directly as the value type when steps is given as a map keyed by step id; see CWLWorkflowStepItem for the list form, where the id is an explicit field instead.