Async variant of mapOperation, accepting promise-returning callbacks and returning a Promise.
The traversal stays strictly sequential (depth-first); see TransformerTyped.transformNodeAsync.
Async variant of transformNode, supporting promise-returning callbacks.
The traversal is strictly sequential (depth-first) - it does not parallelise siblings.
Async variant of mapOperation, accepting promise-returning callbacks and returning a Promise. The traversal stays strictly sequential (depth-first); see TransformerTyped.transformNodeAsync.