OpenTelemetry Test Utilities

The `opentelemetry-test-utils` library provides common utilities and base classes designed to simplify unit testing of OpenTelemetry Python components. This includes helpers for capturing and asserting telemetry data (traces, metrics, logs) within a test environment. It is part of the larger OpenTelemetry Python project, currently at version 0.62b0, with new beta releases typically accompanying major `opentelemetry-python` releases.