# Functions
LoadPackageGroups loads the packages containing labels and returns the bazel.Rules represented by them.
LoadRules loads the packages containing labels and returns the bazel.Rules represented by them.
NewCachingLoader returns a new CachingLoader wrapped around a loader.
Siblings returns all the targets in all the packages that define the files in 'fileNames'.
# Structs
CachingLoader is a concurrent duplicate-supressing cache for results from a loader.
FilteringLoader is a Loader that loads using another Loader, after filtering the list of requested packages.
# Interfaces
Loader loads BUILD files.