| context | Package context defines the Context type, which carries deadlines, cancellation signals, and other request-scoped values across API boundaries and between processes. |
| go.opentelemetry.io/otel/api/metric | |
| go.opentelemetry.io/otel/sdk/export/metric | |
| go.opentelemetry.io/otel/sdk/metric | Package metric provides an implementation of the OpenTelemetry metrics SDK. |
| sync | Package sync provides basic synchronization primitives such as mutual exclusion locks. |
| time | Package time provides functionality for measuring and displaying time. |