Export TransformerConfig interface from babel-jest (#15820)

Author: BPScott

CHANGELOG.md

@@ -4,6 +4,10 @@
 
 - `[jest-environment-jsdom-abstract]` Add support for JSDOM v27 ([#15834](https://github.com/jestjs/jest/pull/15834))
 
+### Fixes
+
+- `[babel-jest]` Export the `TransformerConfig` interface ([#15820](https://github.com/jestjs/jest/pull/15820))
+
 ## 30.1.3
 
 ### Fixes

packages/babel-jest/src/index.ts

@@ -23,7 +23,7 @@ import type {
 } from '@jest/transform';
 import {loadPartialConfig, loadPartialConfigAsync} from './loadBabelConfig';
 
-interface TransformerConfig extends BabelTransformOptions {
+export interface TransformerConfig extends BabelTransformOptions {
   excludeJestPreset?: boolean;
 }