| container/heap | Package heap provides heap operations for any type that implements heap.Interface. |
| container/list | Package list implements a doubly linked list. |
| 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/coreos/etcd/Godeps/_workspace/src/github.com/jonboulle/clockwork | |
| github.com/coreos/etcd/Godeps/_workspace/src/github.com/prometheus/client_golang/prometheus | Package prometheus provides embeddable metric primitives for servers and standardized exposition of telemetry through a web services interface. |
| github.com/coreos/etcd/error | error package describes errors in etcd project. |
| github.com/coreos/etcd/pkg/types | Package types declares various data types and implements type-checking functions. |
| path | Package path implements utility routines for manipulating slash-separated paths. |
| sort | Package sort provides primitives for sorting slices and user-defined collections. |
| 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. |
| sync | Package sync provides basic synchronization primitives such as mutual exclusion locks. |
| sync/atomic | Package atomic provides low-level atomic memory primitives useful for implementing synchronization algorithms. |
| time | Package time provides functionality for measuring and displaying time. |