Firebase Update

express-server/node_modules/is-stream-ended/readme.md

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+# is-stream-ended
+> Check if a stream has ended.
+
+```sh
+$ npm install --save is-stream-ended
+```
+```js
+var isStreamEnded = require('is-stream-ended');
+
+isStreamEnded(stream); // false
+stream.end();
+isStreamEnded(stream); // true
+```
+
+### isStreamEnded(stream)
+
+#### stream
+
+- Type: `Stream`, `Object`
+
+Providing a stream will check against the `stream._readableState` object. To check from the `_writableState`, provide that object directly.