| Path | Synopsis | 
|---|---|
| golang.org/x/net/context | Package context defines the Context type, which carries deadlines, cancelation signals, and other request-scoped values across API boundaries and between processes. | 
| io | Package io provides basic interfaces to I/O primitives. | 
| net/http | Package http provides HTTP client and server implementations. | 
| net/url | Package url parses URLs and implements query escaping. | 
| strings | Package strings implements simple functions to manipulate UTF-8 encoded strings. |