Readonlybasewhether the package is an R-core / base package
Readonlydeclaredhow many of those versions the declared constraints alone allow, the baseline the guess narrows down from
Readonlydeclaredthe raw declared version constraints
Readonlydeclaredthe combined, satisfiable declared range (inferredRange), or undefined if none/contradictory
Readonlygetthe memoized function resolver used for the signature pass (shared so evidence reuses the decodes)
Readonlyknownwhether the database carries the package at all: false means "no record", not "no constraint"
Readonlypreversions after the declared/transitive/base/date constraints but before the signature filter
Readonlysurvivorsversions after all constraints including signature-usage compatibility
Readonlytotalthe total number of versions the database carries for the package (the full history the candidates are drawn from)
Readonlyunsatisfiablewhether the declared + transitive constraints contradict each other (no version can satisfy them all)
the versions of a package before and after the signature-usage filter, plus the declared inputs used to build them