| 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. |
| github.com/prometheus/client_golang/prometheus | Package prometheus is the core instrumentation package. |
| github.com/prometheus/client_golang/prometheus/promhttp | Package promhttp provides tooling around HTTP servers and clients. |
| go.opentelemetry.io/otel | Package otel provides global access to the OpenTelemetry API. |
| go.opentelemetry.io/otel/attribute | Package attribute provides key and value attributes. |
| go.opentelemetry.io/otel/metric | Package metric provides the OpenTelemetry API used to measure metrics about source code operation. |
| go.opentelemetry.io/otel/metric/number | |
| go.opentelemetry.io/otel/metric/sdkapi | |
| go.opentelemetry.io/otel/sdk/export/metric | |
| go.opentelemetry.io/otel/sdk/export/metric/aggregation | |
| go.opentelemetry.io/otel/sdk/instrumentation | Package instrumentation provides types to represent the code libraries that provide OpenTelemetry instrumentation. |
| go.opentelemetry.io/otel/sdk/metric/controller/basic | |
| go.opentelemetry.io/otel/sdk/resource | Package resource provides detecting and representing resources. |
| net/http | Package http provides HTTP client and server implementations. |
| strings | Package strings implements simple functions to manipulate UTF-8 encoded strings. |
| sync | Package sync provides basic synchronization primitives such as mutual exclusion locks. |
| unicode | Package unicode provides data and functions to test some properties of Unicode code points. |