From 866a131303bfefa93f7b7a59733b4cdadf7e7a3e Mon Sep 17 00:00:00 2001
From: Ardis Lu <ardisglu@gmail.com>
Date: Sun, 19 Jan 2025 23:44:36 -0800
Subject: [PATCH] Add note about maxConcurrent for transformation function

---
 src/core.js | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/core.js b/src/core.js
index 94c47d8..b2dc40b 100644
--- a/src/core.js
+++ b/src/core.js
@@ -190,6 +190,9 @@ export class CSVTransformer extends TransformStream {
    * if there is only 1 row in the batch (except for the header row). The header row is always processed by itself and passed as a
    * `Array<string>`, regardless of the `options.maxBatchSize` value.
    * 
+   * If `options.maxConcurrent` is a number greater than `1`, multiple instances of the transformation function will be executed
+   * concurrently in groups up to the size of `options.maxConcurrent`.
+   * 
    * Return `null` to consume an input row without emitting an output row.
    * @param {CSVTransformerOptions} options Object containing flags to configure the stream logic.
    */
-- 
2.47.3