babel-plugin-transform-replace-object-assign

This Babel plugin replaces all `Object.assign` calls with a custom implementation specified via the `moduleSpecifier` option, importing the shim from an npm package. At version 2.0.0 (latest release, last updated in 2018), the plugin requires `@babel/core@^7.0.0` as a peer dependency. It is similar to `babel-plugin-transform-object-assign` but allows using an external package (e.g., `object-assign`) instead of Babel's internal `_extends` helper, reducing bundle size by avoiding per-file function declarations. However, the plugin is explicitly deprecated by the author: the original Chrome bug it addressed (V8 issue #4118) has been fixed since Chrome 49. The plugin remains functional but is discouraged for new projects; developers should consider native `Object.assign` or `babel-plugin-transform-object-assign` instead.