context | Package context defines the Context type, which carries deadlines, cancellation signals, and other request-scoped values across API boundaries and between processes. |
crypto/sha256 | Package sha256 implements the SHA224 and SHA256 hash algorithms as defined in FIPS 180-4. |
encoding/hex | Package hex implements hexadecimal encoding and decoding. |
errors | Package errors implements functions to manipulate errors. |
io | Package io provides basic interfaces to I/O primitives. |
os | Package os provides a platform-independent interface to operating system functionality. |
path | Package path implements utility routines for manipulating slash-separated paths. |
runtime | Package runtime contains operations that interact with Go's runtime system, such as functions to control goroutines. |
sync | Package sync provides basic synchronization primitives such as mutual exclusion locks. |