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export default { preset: 'ts-jest/presets/default-esm', testEnvironment: 'node', extensionsToTreatAsEsm: ['.ts', '.mts'], moduleNameMapper: { '^(\\.{1,2}/.*)\\.m?js$': '$1', }, transform: { '^.+\\.m?[tj]s$': ['ts-jest', { useESM: true, }], }, };