on
open fun <CP, CO, CR> onRenderChild(child: <Error class: unknown class><CP, CO, CR>, childProps: CP, key: String, handler: (CO) -> <Error class: unknown class><P, S, O>, proceed: (<Error class: unknown class><CP, CO, CR>, childProps: CP, key: String, handler: (CO) -> <Error class: unknown class><P, S, O>) -> CR): CR(source)
Intercepts calls to BaseRenderContext.renderChild, allowing the interceptor to wrap or replace the child Workflow, its childProps, key, and the handler function to be applied to the child's output.