| bytes | Package bytes implements functions for the manipulation of byte slices. |
| encoding/json | Package json implements encoding and decoding of JSON as defined in RFC 7159. |
| errors | Package errors implements functions to manipulate errors. |
| flag | Package flag implements command-line flag parsing. |
| fmt | Package fmt implements formatted I/O with functions analogous to C's printf and scanf. |
| go.uber.org/multierr | Package multierr allows combining one or more errors together. |
| go.uber.org/zap/internal | Package internal and its subpackages hold types and functionality that are not part of Zap's public API. |
| go.uber.org/zap/internal/bufferpool | Package bufferpool houses zap's shared internal buffer pool. |
| go.uber.org/zap/internal/pool | Package pool provides internal pool utilities. |
| go.uber.org/zap/internal/stacktrace | Package stacktrace provides support for gathering stack traces efficiently. |
| go.uber.org/zap/zapcore | Package zapcore defines and implements the low-level interfaces upon which zap is built. |
| io | Package io provides basic interfaces to I/O primitives. |
| log | Package log implements a simple logging package. |
| math | Package math provides basic constants and mathematical functions. |
| net/http | Package http provides HTTP client and server implementations. |
| net/url | Package url parses URLs and implements query escaping. |
| os | Package os provides a platform-independent interface to operating system functionality. |
| path/filepath | Package filepath implements utility routines for manipulating filename paths in a way compatible with the target operating system-defined file paths. |
| sort | Package sort provides primitives for sorting slices and user-defined collections. |
| 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. |