session.close is not a function

[Vishal-sol]

Notification paylod::
1|app    |  {
1|app    |   "aps": {
1|app    |     "handle": "TEST NAME",
1|app    |     "notification_type": "voip",
1|app    |     "hasVideo": "0",
1|app    |     "toPhoneExt": "1000",
1|app    |     "callTime": "1617185365844",
1|app    |     "deviceToken": "<XXXXXXXXX>",
1|app    |     "callFromExt": "4002",
1|app    |     "callerImage": "/imgs/default.jpg",
1|app    |     "alert_type": "voip_call",
1|app    |     "deviceType": "ios",
1|app    |     "env": "production"
1|app    |   }
1|app    | }
TypeError: session.close is not a function
1|app    |     at Client.closeAndDestroySession (/root/4call-pushnotification/node_modules/@parse/node-apn/lib/client.js:68:17)
1|app    |     at ClientHttp2Session.session.on (/root/4call-pushnotification/node_modules/@parse/node-apn/lib/client.js:97:14)
1|app    |     at emitTwo (events.js:126:13)
1|app    |     at ClientHttp2Session.emit (events.js:214:7)
1|app    |     at TLSSocket.socketOnError (internal/http2/core.js:2109:15)
1|app    |     at emitOne (events.js:116:13)
1|app    |     at TLSSocket.emit (events.js:211:7)
1|app    |     at emitErrorNT (internal/streams/destroy.js:64:8)
1|app    |     at _combinedTickCallback (internal/process/next_tick.js:138:11)
1|app    |     at process._tickDomainCallback (internal/process/next_tick.js:218:9)

I'm facing this issue when sending a Push Notification using the new Provider API of node-apn package.

But the thing is, this notification is sent successfully sometimes, but throws this exact error in every push notification at other times. This behaviours seems totally random.

[TysonAndre]

node_modules/@parse/node-apn is a fork of this at https://github.com/parse-community/node-apn/

It'd help to include the node version and version of @parse/node-apn if filing an issue there (should update to latest), as well as manually debugging what session.close actually was