Parser fails to return Operation Channel

[AceTheCreator]

Describe the bug

When I apply a list of traits to the operation object and try to retrieve the operation channel, the parser fails to return the channel

How to Reproduce

Apply a list of traits to an operation object and try retrieving the operation channel. operation.channels().all()[0]

Here's an example you can test it against https://raw.githubusercontent.com/asyncapi/spec/next-major-spec/examples/streetlights-kafka-asyncapi.yml

Expected behavior

The parser should return the operation channel in as much as the channel exists

cc @smoya @derberg @jonaslagoni

[jonaslagoni]

Duplicate of #856 🙂