| context | Package context defines the Context type, which carries deadlines, cancellation signals, and other request-scoped values across API boundaries and between processes. |
| 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. |
| github.com/mongodb/mongo-go-driver/bson | |
| github.com/mongodb/mongo-go-driver/bson/objectid | |
| github.com/mongodb/mongo-go-driver/internal/testutil | |
| github.com/mongodb/mongo-go-driver/mongo | |
| github.com/montanaflynn/stats | Package stats is a well tested and comprehensive statistics library package with no dependencies. |
| github.com/stretchr/testify/require | Package require implements the same assertions as the `assert` package but stops test execution when a test fails. |
| io/ioutil | Package ioutil implements some I/O utility functions. |
| 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. |
| reflect | Package reflect implements run-time reflection, allowing a program to manipulate objects with arbitrary types. |
| runtime | Package runtime contains operations that interact with Go's runtime system, such as functions to control goroutines. |
| strings | Package strings implements simple functions to manipulate UTF-8 encoded strings. |
| testing | Package testing provides support for automated testing of Go packages. |
| time | Package time provides functionality for measuring and displaying time. |