| bytes | Package bytes implements functions for the manipulation of byte slices. |
| fmt | Package fmt implements formatted I/O with functions analogous to C's printf and scanf. |
| github.com/davecgh/go-spew/spew | Package spew implements a deep pretty printer for Go data structures to aid in debugging. |
| github.com/google/go-cmp/cmp | Package cmp determines equality of values. |
| strings | Package strings implements simple functions to manipulate UTF-8 encoded strings. |
| text/tabwriter | Package tabwriter implements a write filter (tabwriter.Writer) that translates tabbed columns in input into properly aligned text. |