bytes | Package bytes implements functions for the manipulation of byte slices. |
flag | Package flag implements command-line flag parsing. |
fmt | Package fmt implements formatted I/O with functions analogous to C's printf and scanf. |
golang.org/x/text/internal/gen | Package gen contains common code for the various code generation tools in the text repository. |
io/ioutil | Package ioutil implements some I/O utility functions. |
os | Package os provides a platform-independent interface to operating system functionality. |
os/exec | Package exec runs external commands. |
path/filepath | Package filepath implements utility routines for manipulating filename paths in a way compatible with the target operating system-defined file paths. |
runtime | Package runtime contains operations that interact with Go's runtime system, such as functions to control goroutines. |
testing | Package testing provides support for automated testing of Go packages. |