| context | Package context defines the Context type, which carries deadlines, cancellation signals, and other request-scoped values across API boundaries and between processes. |
| fmt | Package fmt implements formatted I/O with functions analogous to C's printf and scanf. |
| go.mongodb.org/mongo-driver/bson | Package bson is a library for reading, writing, and manipulating BSON. |
| go.mongodb.org/mongo-driver/internal/require | |
| io/ioutil | Package ioutil implements some I/O utility functions. |
| path | Package path implements utility routines for manipulating slash-separated paths. |
| testing | Package testing provides support for automated testing of Go packages. |
| time | Package time provides functionality for measuring and displaying time. |