frontend/node_modules/@emotion/babel-plugin/src/utils/create-node-env-conditional.js

export default function createNodeEnvConditional(t, production, development) {
  return t.conditionalExpression(
    t.binaryExpression(
      '===',
      t.memberExpression(
        t.memberExpression(t.identifier('process'), t.identifier('env')),
        t.identifier('NODE_ENV')
      ),
      t.stringLiteral('production')
    ),
    production,
    development
  )
}