Add notification ID in async mechanism

[jgarciahospital]

Problem description

PDD API enables a async mechanism in which the API response is provided to a callback/sink of the API consumer, instead of as a direct response en the API call.

Multiple API calls may be triggered in parallel, and API consumer may not be able to properly track the responses based on the request.

Possible evolution

Include a notification/request ID that allows the developer to track the responses and correlate them with the requests.