def aws_xray_trace_config(name=None):
    """
    :param name: name used to identify the subsegment, with None internally the URL will
                 be used as identifier.
    :returns: TraceConfig.
    """

    def _trace_config_ctx_factory(trace_request_ctx):
        return SimpleNamespace(
            name=name,
            trace_request_ctx=trace_request_ctx
        )

    trace_config = aiohttp.TraceConfig(trace_config_ctx_factory=_trace_config_ctx_factory)
    trace_config.on_request_start.append(begin_subsegment)
    trace_config.on_request_end.append(end_subsegment)
    trace_config.on_request_exception.append(end_subsegment_with_exception)
    return trace_config 

def init_with_instana(wrapped, instance, argv, kwargs):
        instana_trace_config = aiohttp.TraceConfig()
        instana_trace_config.on_request_start.append(stan_request_start)
        instana_trace_config.on_request_end.append(stan_request_end)
        instana_trace_config.on_request_exception.append(stan_request_exception)
        if 'trace_configs' in kwargs:
            kwargs['trace_configs'].append(instana_trace_config)
        else:
            kwargs['trace_configs'] = [instana_trace_config]

        return wrapped(*argv, **kwargs) 

def make_trace_config(tracer: Tracer) -> aiohttp.TraceConfig:
    """Creates aiohttp.TraceConfig with enabled aiozipking instrumentation
    for aiohttp client.
    """
    trace_config = aiohttp.TraceConfig()
    zipkin = ZipkinClientSignals(tracer)

    trace_config.on_request_start.append(zipkin.on_request_start)
    trace_config.on_request_end.append(zipkin.on_request_end)
    trace_config.on_request_exception.append(zipkin.on_request_exception)
    return trace_config