Weights & Biases is provider of the AI developer platform to train and fine-tune AI models and develop AI applications.
Weights & Biase products can be used to log metrics and artifacts during training, and to trace the execution of your code. There are several main ways to use Weights & Biases products within LangChain:
  • with wandb_tracing_enabled
  • with Weave lightweight toolkit
  • with WandbCallbackHandler (deprecated)

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wandb_tracing_enabled

See a usage example. See in the W&B documentation. 
from langchain_community.callbacks import wandb_tracing_enabled

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Weave

See in the W&B documentation.

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WandbCallbackHandler

Note: the WandbCallbackHandler is being deprecated in favour of the wandb_tracing_enabled. See a usage example. See in the W&B documentation. 
from langchain_community.callbacks import WandbCallbackHandler