{ "presets": [ ["@babel/preset-env", { "modules": "commonjs" }] ], "plugins": [ ["replace-import-extension", { "extMapping": { ".mjs": ".js" } }] ], "assumptions": { "constantReexports": true, "noIncompleteNsImportDetection": true }, "env": { "test": { "sourceMaps": "inline" } }}