[Python APIView] Self-referential TRACING_CONTEXT rendered as `TRACING_CONTEXT = TRACING_CONTEXT`

Location: azure.core.pipeline.policies.DistributedTracingPolicy (APIView rendering)

Bad code snippet:

TRACING_CONTEXT = TRACING_CONTEXT

Description:
This is a rendering/parsing bug in the language parser used by APIView. The APIView shows a self-referential assignment which is not valid Python and is misleading — the original source intended TRACING_CONTEXT to be a constant string key (or similarly annotated constant). The current rendering suggests code that would raise a NameError at runtime and does not reflect the real API surface.

Good code examples (what the APIView should display):

Option A (simple constant):

TRACING_CONTEXT = "tracing_context"

Option B (with type annotation):

TRACING_CONTEXT: str = "tracing_context"

Please update the language parser/rendering so APIView shows the actual constant value or annotation instead of the self-referential assignment.

Start with the APIView language parser/rendering path for azure.core.pipeline.policies.DistributedTracingPolicy. Compare its output with the original constant declaration and verify that the rendered API shows the actual constant value or annotation rather than a self-referential assignment.

Written by the indexing model from the issue text.