| fmt | Package fmt implements formatted I/O with functions analogous to C's printf and scanf. |
| github.com/alecthomas/kong | Package kong aims to support arbitrarily complex command-line structures with as little developer effort as possible. |
| github.com/davecgh/go-spew/spew | Package spew implements a deep pretty printer for Go data structures to aid in debugging. |
| github.com/hashicorp/hcl | Package hcl decodes HCL into usable Go structures. |
| io | Package io provides basic interfaces to I/O primitives. |
| io/ioutil | Package ioutil implements some I/O utility functions. |
| strings | Package strings implements simple functions to manipulate UTF-8 encoded strings. |