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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def with_debug_id(debug_id):
 """Deprecated, not used by Jaeger."""

        ctx = SpanContext(
            trace_id=None, span_id=None, parent_id=None, flags=None
        )
        ctx._debug_id = debug_id
        return ctx