Imports github.com/gofiber/fiber/v2 github.com/gofiber/fiber/v2/utils go.opentelemetry.io/contrib go.opentelemetry.io/otel go.opentelemetry.io/otel/propagation go.opentelemetry.io/otel/semconv/v1.4.0 go.opentelemetry.io/otel/trace Standard library imports context encoding/base64 net/http strings