Here is instrumenting code:
endpoint = phoenix_collector_endpoint + "/v1/traces"
resource = Resource(attributes={})
tracer_provider = trace_sdk.TracerProvider(resource=resource)
span_otlp_exporter = OTLPSpanExporter(endpoint=endpoint)
tracer_provider.add_span_processor(SimpleSpanProcessor(span_exporter=span_otlp_exporter))
trace_api.set_tracer_provider(tracer_provider=tracer_provider)
DSPyInstrumentor().instrument()