text: # Copyright The OpenTelemetry Authors
  #
  # Licensed under the Apache License, Version 2.0 (the "License");
  # you may not use this file except in compliance with the License.
  # You may obtain a copy of the License at
  #
  #     http://www.apache.org/licenses/LICENSE-2.0
  #
  # Unless required by applicable law or agreed to in writing, software
  # distributed under the License is distributed on an "AS IS" BASIS,
  # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  # See the License for the specific language governing permissions and
  # limitations under the License.
  
  from opentelemetry import baggage, trace
  
  tracer = trace.get_tracer(__name__)
  
  global_ctx = baggage.set_baggage("context", "global")
  with tracer.start_as_current_span(name="root span") as root_span:
      parent_ctx = baggage.set_baggage("context", "parent")
      with tracer.start_as_current_span(
          name="child span", context=parent_ctx
      ) as child_span:
          child_ctx = baggage.set_baggage("context", "child")
  
  print(baggage.get_baggage("context", global_ctx))
  print(baggage.get_baggage("context", parent_ctx))
  print(baggage.get_baggage("context", child_ctx))
  