First build

node_modules/roarr/dist/log.js.flow

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+// @flow
+
+import {
+  boolean,
+} from 'boolean';
+import environmentIsNode from 'detect-node';
+import createGlobalThis from 'globalthis';
+import {
+  createLogger,
+  createMockLogger,
+  createRoarrInititialGlobalState,
+} from './factories';
+
+const globalThis = createGlobalThis();
+
+const ROARR = globalThis.ROARR = createRoarrInititialGlobalState(globalThis.ROARR || {});
+
+let logFactory = createLogger;
+
+if (environmentIsNode) {
+  // eslint-disable-next-line no-process-env
+  const enabled = boolean(process.env.ROARR_LOG || '');
+
+  if (!enabled) {
+    logFactory = createMockLogger;
+  }
+}
+
+export type {
+  LoggerType,
+  MessageType,
+  TranslateMessageFunctionType,
+} from './types';
+
+export {
+  ROARR,
+};
+
+export default logFactory((message) => {
+  if (ROARR.write) {
+    // Stringify message as soon as it is received to prevent
+    // properties of the context from being modified by reference.
+    const body = JSON.stringify(message);
+
+    ROARR.write(body);
+  }
+});