As a user, I can obtain a list of recently updated Test Plans using a JQL function

As a user, I can obtain a list of recently updated Test Plans using a JQL function, so I can analyze them or synchronize their related results to an external data processing entity.

issue in testPlansWithCompletedTestRunsSince(P1, [P2])

P1 - Date
P2 - Filter name/id of Test Plans (optional)

Examples:

issue in testPlansWithCompletedTestRunsSince("2019-02-13 00:00")
issue in testPlansWithCompletedTestRunsSince("-3d", "test_plans_v1") --> filter Name

Returns a list of Test Plans in the Test Plans identified by filter P2, whose results (i.e. the ones from the related Test Executions) have been updated to a final status after (>=) the given date P1.