| bytes | Package bytes implements functions for the manipulation of byte slices. |
| context | Package context defines the Context type, which carries deadlines, cancellation signals, and other request-scoped values across API boundaries and between processes. |
| encoding/hex | Package hex implements hexadecimal encoding and decoding. |
| encoding/json | Package json implements encoding and decoding of JSON as defined in RFC 7159. |
| go.opentelemetry.io/otel/codes | Package codes defines the canonical error codes used by OpenTelemetry. |
| go.opentelemetry.io/otel/label | |
| time | Package time provides functionality for measuring and displaying time. |