| fmt | Package fmt implements formatted I/O with functions analogous to C's printf and scanf. |
| golang.org/x/sync/errgroup | Package errgroup provides synchronization, error propagation, and Context cancelation for groups of goroutines working on subtasks of a common task. |
| golang.org/x/telemetry/counter | Package counter implements a simple counter system for collecting totally public telemetry data. |
| golang.org/x/telemetry/internal/crashmonitor | |
| golang.org/x/telemetry/internal/telemetry | Package telemetry manages the telemetry mode file. |
| golang.org/x/telemetry/internal/upload | |
| log | Package log implements a simple logging package. |
| os | Package os provides a platform-independent interface to operating system functionality. |
| os/exec | Package exec runs external commands. |
| path/filepath | Package filepath implements utility routines for manipulating filename paths in a way compatible with the target operating system-defined file paths. |
| sync | Package sync provides basic synchronization primitives such as mutual exclusion locks. |
| time | Package time provides functionality for measuring and displaying time. |