| encoding/json | Package json implements encoding and decoding of JSON as defined in RFC 7159. |
| fmt | Package fmt implements formatted I/O with functions analogous to C's printf and scanf. |
| github.com/docker/docker/opts | |
| github.com/docker/docker/pkg/mflag | |
| github.com/docker/docker/pkg/nat | |
| github.com/docker/docker/pkg/parsers | Package parsers provides helper functions to parse and validate different type of string. |
| github.com/docker/docker/pkg/ulimit | |
| github.com/docker/docker/pkg/units | |
| io | Package io provides basic interfaces to I/O primitives. |
| strconv | Package strconv implements conversions to and from string representations of basic data types. |
| strings | Package strings implements simple functions to manipulate UTF-8 encoded strings. |