method Channel.prototype.unsubscribe
Usage in Deno
```typescript import { Channel } from "node:node__diagnostics_channel.d.ts"; ```
Channel.prototype.unsubscribe(onMessage: ChannelListener): void
Deprecated
Since v18.7.0,v16.17.0 - Use onMessage)
Remove a message handler previously registered to this channel with `channel.subscribe(onMessage)`.
```js
import diagnostics_channel from 'node:diagnostics_channel';
const channel = diagnostics_channel.channel('my-channel');
function onMessage(message, name) {
// Received data
}
channel.subscribe(onMessage);
channel.unsubscribe(onMessage);
```
onMessage: ChannelListener
The previous subscribed handler to remove
void
`true` if the handler was found, `false` otherwise.