Reason/Context

With the current API document for the generator it does not state you have access to the parsed AsyncAPIDocument on asyncapi and the AsyncAPI file on originalAsyncAPI.

Description

We need to add jsdoc to the following lines:
https://github.com/asyncapi/generator/blob/4c8dd9de88c701ccf1af

There was a reported issue on Twitter where 127,000 types were being generated and it was taking 8 hours. Not necessarily a Myriad issue but it might be worth profiling the plugins to see where the hot areas might be if we start to generate a lot of types.