code: def wrap_requests(requests_func):
      
      def call(url, *args, **kwargs):
          blacklist_hostnames = execution_context.get_opencensus_attr(
              'blacklist_hostnames')
          parsed_url = urlparse(url)
          if parsed_url.port is None:
              dest_url = parsed_url.hostname
          else:
              dest_url = '{}:{}'.format(parsed_url.hostname, parsed_url.port)
          if utils.disable_tracing_hostname(dest_url, blacklist_hostnames):
              return requests_func(url, *args, **kwargs)
  
          _tracer = execution_context.get_opencensus_tracer()
          _span = _tracer.start_span()
          _span.name = '[requests]{}'.format(requests_func.__name__)
          _span.span_kind = span_module.SpanKind.CLIENT
  
          # Add the requests url to attributes
          _tracer.add_attribute_to_current_span(HTTP_URL, url)
  
          result = requests_func(url, *args, **kwargs)
  
          # Add the status code to attributes
          _tracer.add_attribute_to_current_span(
              HTTP_STATUS_CODE, str(result.status_code))
  
          _tracer.end_span()
          return result
  
      return call
docs: Wrap the requests function to trace it.