langchain

0002b1da - ollama[patch]: fix model validation, ensure per-call reasoning can be set, tests (#31927)

ollama[patch]: fix model validation, ensure per-call reasoning can be set, tests (#31927) * update model validation due to change in [Ollama client](https://github.com/ollama/ollama) - ensure you are running the latest version (0.9.6) to use `validate_model_on_init` * add code example and fix formatting for ChatOllama reasoning * ensure that setting `reasoning` in invocation kwargs overrides class-level setting * tests