Is there a way to find out which values of a date are imputed by duckling

Case 1:
Input text: on the 26th
Duckling output: {"value":"2022-04-26T00:00:00.000-07:00","grain":"day","type":"value"}
In this case, duckling has filled the values of the month (04) and the year (2022). So month and year are imputed

Case 2:
Input text: 26th May
Duckling output: {"value":"2022-05-26T00:00:00.000-07:00","grain":"day","type":"value"}
In this case, duckling has filled the value of the year (2022). Only year is imputed

In both the above cases, duckling tried to obtain a complete date from the input by imputing some values.

Question:
From the parsed output itself, Is there a way to know if duckling has imputed certain placeholder values to the parsed output? If yes, which ones (i.e. Month or a year or both, etc)?

The issue provides two date inputs, “on the 26th” and “26th May,” with their parsed outputs, but names no files, tests, or entry points. Start by locating the date parsing output representation and determine whether it exposes which components were imputed. Done means the output can reliably identify imputed month and year values, or the limitation is documented.