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9460e5e182
Fixes #4145 The HuggingFace embedder was failing with 'could not convert string to float: error' because chromadb's HuggingFaceEmbeddingFunction uses the deprecated api-inference.huggingface.co endpoint which returns error messages instead of embeddings. This fix creates a custom HuggingFaceEmbeddingFunction that uses huggingface_hub's InferenceClient with provider='hf-inference' instead of the deprecated endpoint. Changes: - Add custom embedding_callable.py using huggingface_hub.InferenceClient - Update HuggingFaceProvider to use the new embedding callable - Handle different embedding response formats (1D, 2D, 3D arrays) - Add comprehensive error handling with actionable error messages - Add 16 test cases covering initialization, embedding generation, error handling, and ChromaDB integration Co-Authored-By: João <joao@crewai.com>