| bufio | Package bufio implements buffered I/O. It wraps an io.Reader or io.Writer object, creating another object (Reader or Writer) that also implements the interface but provides buffering and some help for textual I/O. |
| flag | Package flag implements command-line flag parsing. |
| fmt | Package fmt implements formatted I/O with functions analogous to C's printf and scanf. |
| github.com/kisielk/gotool | |
| go/build | Package build gathers information about Go packages. |
| golang.org/x/tools/go/buildutil | Package buildutil provides utilities related to the go/build package in the standard library. |
| golang.org/x/tools/refactor/importgraph | Package importgraph computes the forward and reverse import dependency graphs for all packages in a Go workspace. |
| honnef.co/go/tools/version | |
| os | Package os provides a platform-independent interface to operating system functionality. |