Warning Logs with response_format in opentelemetry-instrumentation-openai-v2

[raptium]

When using opentelemetry-instrumentation-openai-v2, I receive the following warning when setting the response_format parameter as a dictionary:

WARNING:opentelemetry.attributes:Invalid type dict for attribute 'gen_ai.openai.request.response_format' value. Expected one of ['bool', 'str', 'bytes', 'int', 'float'] or a sequence of those types\

The OpenAI Python Client and API Reference indicate that response_format can be a dictionary with a key "type" (values: "text", "json_object", "json_schema"). However, the OpenTelemetry Semantic Conventions specify that this attribute should be a plain string.

The current implementation attempts to log the entire dictionary, causing a type mismatch. The relevant code can be found

opentelemetry-python-contrib/instrumentation-genai/opentelemetry-instrumentation-openai-v2/src/opentelemetry/instrumentation/openai_v2/utils.py

Lines 205 to 207 in d330ab3

	GenAIAttributes.GEN_AI_OPENAI_REQUEST_RESPONSE_FORMAT: kwargs.get(
	"response_format"
	),