Details

Key _Details in Infl Curve refers to Set containing detailed information about the swap rates used in the inflation curve construction as they are conveyed directly from QuantLib.
It is an object of type Set consisting of 2 columns, where each row corresponds to an inflation swap rate (either zero or year-on-year, depending on the index type).

Expects an object of type Set representing a table consisting of 3 columns that may be arranged in any order.
Each column is uniquely identified by the text label at its top cell that is specially formatted and known as the column's title

The following titles apply in the table here:
#Dates
#Times
#Rates
Look at Infl Curve for more information on how the swap rates are defined.

Note this key is prefixed by _, which indicates it is regarded as a read-only part of the object's data and therefore its associated value cannot be edited.
For that reason it does not appear as part of the input data.
It carries informational only value for the user and appears as part of its contents.
Also it completely depends on the remaining object contents and therefore is never part of the exported object's data.