| 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/attribute | Package attribute provides key and value attributes. |
| go.opentelemetry.io/otel/sdk/instrumentation | Package instrumentation provides types to represent the code libraries that provide OpenTelemetry instrumentation. |
| go.opentelemetry.io/otel/sdk/resource | Package resource provides detecting and representing resources. |
| go.opentelemetry.io/otel/sdk/trace | Package trace contains support for OpenTelemetry distributed tracing. |
| go.opentelemetry.io/otel/trace | Package trace provides an implementation of the tracing part of the OpenTelemetry API. |
| sync | Package sync provides basic synchronization primitives such as mutual exclusion locks. |
| time | Package time provides functionality for measuring and displaying time. |