Imports of package cfg

PathSynopsis
bytesPackage bytes implements functions for the manipulation of byte slices.
fmtPackage fmt implements formatted I/O with functions analogous to C's printf and scanf.
go/astPackage ast declares the types used to represent syntax trees for Go packages.
go/formatPackage format implements standard formatting of Go source.
go/tokenPackage token defines constants representing the lexical tokens of the Go programming language and basic operations on tokens (printing, predicates).