const parser = 'babel' function transformer (file, api) { const j = api.jscodeshift; const root = j(file.source); // find declaration for "moment" import return root.find(j.ImportDeclaration, { source: { value: 'moment'}}).forEach(path => { path.value.source.value = 'dayjs' }).toSource(); } module.exports = transformer module.exports.parser = parser