Add Baggage example for Python

content/en/tracing/trace_collection/custom_instrumentation/python/dd-api.md

@@ -231,6 +231,38 @@ except TypeError as e:
 
 You can configure the propagation of context for distributed traces by injecting and extracting headers. Read [Trace Context Propagation][2] for information.
 
+### Baggage
+
+Manipulating [Baggage][3] on a span:
+
+```python
+from ddtrace import tracer
+
+# Start a new span and set baggage
+with tracer.trace("example") as span:
+    # set_baggage_item
+    span.context.set_baggage_item("key1", "value1")
+    span.context.set_baggage_item("key2", "value2")
+
+    # get_all_baggage_items
+    all_baggage = span.context.get_all_baggage_items()
+    print(all_baggage) # {'key1': 'value1', 'key2': 'value2'}
+
+    # remove_baggage_item
+    span.context.remove_baggage_item("key1")
+    print(span.context.get_all_baggage_items()) # {'key2': 'value2'}
+
+    # get_baggage_item
+    print(span.context.get_baggage_item("key1")) # None
+    print(span.context.get_baggage_item("key2")) # value2
+
+    # remove_all_baggage_items
+    span.context.remove_all_baggage_items()
+    print(span.context.get_all_baggage_items()) # {}
+```
+
+To see an example in action, see [flask-baggage on trace-examples][7]
+
 ## Resource filtering
 
 Traces can be excluded based on their resource name, to remove synthetic traffic such as health checks from reporting traces to Datadog. This and other security and fine-tuning configurations can be found on the [Security][4] page or in [Ignoring Unwanted Resources][5].
@@ -241,6 +273,8 @@ Traces can be excluded based on their resource name, to remove synthetic traffic
 
 [1]: /tracing/compatibility_requirements/python
 [2]: /tracing/trace_collection/trace_context_propagation/
+[3]: /tracing/trace_collection/trace_context_propagation/#baggage
 [4]: /tracing/security
 [5]: /tracing/guide/ignoring_apm_resources/
 [6]: /tracing/setup/python/
+[7]: https://github.com/DataDog/trace-examples/tree/baggage/python/flask-baggage

content/en/tracing/trace_collection/trace_context_propagation/_index.md

@@ -118,13 +118,14 @@ In addition to the environment variable configuration, you can also update the p
 
 The Datadog Python SDK supports the following trace context formats, including deprecated configuration values:
 
-| Format                 | Configuration Value |
-|------------------------|---------------------|
-| [Datadog][1]           | `datadog`           |
-| [W3C Trace Context][2] | `tracecontext`      |
-| [B3 Single][3]         | `b3`                |
-| [B3 Multi][4]          | `b3multi`           |
-| [None][5]              | `none`              |
+| Format                 | Configuration Value             |
+|------------------------|---------------------------------|
+| [Datadog][1]           | `datadog`                       |
+| [W3C Trace Context][2] | `tracecontext`                  |
+| [B3 Single][3]         | `b3`                            |
+|                        | `b3 single header` (deprecated) |
+| [B3 Multi][4]          | `b3multi`                       |
+| [None][5]              | `none`                          |
 
 [1]: #datadog-format
 [2]: https://www.w3.org/TR/trace-context/
@@ -625,9 +626,11 @@ When the Datadog SDK is configured with the Datadog format for extraction or inj
 
 When the Datadog SDK is configured with the None format for extraction or injection (possibly both), the Datadog SDK does _not_ interact with request headers, meaning that the corresponding context propagation operation does nothing.
 
-### Baggage format
+### Baggage
+
+_Currently available in Python and Node.js. For other languages, please reach out to [Support][11]_ 
 
-Baggage propagation through OpenTelemetry's W3C-compatible headers is enabled by default.
+By default, Baggage is automatically propagated through a distributed request using OpenTelemetry's [W3C-compatible headers][10].
 
 ## Further reading
 
@@ -643,3 +646,4 @@ Baggage propagation through OpenTelemetry's W3C-compatible headers is enabled by
 [8]: /synthetics/platform/apm
 [9]: /opentelemetry/interoperability/environment_variable_support
 [10]: https://www.w3.org/TR/baggage/
+[11]: /help