LogfireNotConfiguredWarning when using pydantic_graph without logfire

[DouweM]

Initial Checks

• I confirm that I'm using the latest version of Pydantic AI
• I confirm that I searched for my issue in https://github.com/pydantic/pydantic-ai/issues before opening this issue

Description

Caused by github.com//pull/2683:

LogfireNotConfiguredWarning: No logs or spans will be created until `logfire.configure()` has been called. Set the environment variable LOGFIRE_IGNORE_NO_CONFIG=1 or add ignore_no_config=true in pyproject.toml to suppress this warning.

Originating here:

pydantic-ai/pydantic_graph/pydantic_graph/graph.py

Line 730 in 7e8ebec

stack.enter_context(_logfire.span('run node {node_id}', node_id=node_id, node=node))

Example Code

Python, Pydantic AI & LLM client version

v1.0.0b1