Optional Readonlyboundthe version bound this constraint establishes, if any (e.g. >=1.1.0, <=2021-05-31)
Readonlydetaila human-readable explanation, e.g. dplyr::filter has parameter '.by' only from 1.1.0
Optional Readonlyfunctionthe qualified function that carried the evidence (for signature constraints)
Readonlyoriginthe concrete origin of the constraint, e.g. project metadata, dplyr 1.1.0, dplyr::filter
Optional Readonlyparameterthe argument/parameter that carried the evidence (for signature constraints)
Readonlysource
One provenance-carrying constraint on a dependency's version: where it comes from (source/origin) and what it requires (bound). The set of these is exactly why a range is what it is, so it can answer "it must be
>= 4.2.0because ...".