| context | Package context defines the Context type, which carries deadlines, cancellation signals, and other request-scoped values across API boundaries and between processes. |
| log | Package log implements a simple logging package. |
| net/http | Package http provides HTTP client and server implementations. |
| sourcegraph.com/sourcegraph/appdash | Package appdash provides a Go app performance tracing suite. |
| strings | Package strings implements simple functions to manipulate UTF-8 encoded strings. |
| sync | Package sync provides basic synchronization primitives such as mutual exclusion locks. |
| time | Package time provides functionality for measuring and displaying time. |