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apr import doesn't find model.safetensors with valid URL #221

@alfredodeza

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@alfredodeza

From pmat version d3f63b0

Valid Hugging Face url verification with curl:

curl https://huggingface.co/Qwen/Qwen2.5-1.5B-Instruct/resolve/main/model.safetensors
Found. Redirecting to https://cas-bridge.xethub.hf.co/xet-bridge-us/66e98dd5899bdb384bd953b4/46ea4ba5786759efecf127c64dee654df39a3f02fdeaafc67734a06574619467?X-Amz-Algorithm=AWS4-HMAC-SHA256&X-Amz-Content-Sha256=UNSIGNED-PAYLOAD&X-Amz-Credential=cas%2F20260211%2Fus-east-1%2Fs3%2Faws4_request&X-Amz-Date=20260211T111114Z&X-Amz-Expires=3600&X-Amz-Signature=9ba81255c6a22c2ee2ca734fd80c41471801786b2f8c08fde3f0d146a761b3d0&X-Amz-SignedHeaders=host&X-Xet-Cas-Uid=public&response-content-disposition=inline%3B+filename*%3DUTF-8%27%27model.safetensors%3B+filename%3D%22model.safetensors%22%3B&x-
[...]

apr import fails to find it with the same URI:

apr import hf://Qwen/Qwen2.5-1.5B-Instruct/resolve/main/model.safetensors

━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
  APR Import Pipeline
━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
╭────────┬────────────────────────────────────────────────────────────────╮
│ Source │ hf://Qwen/Qwen2.5-1.5B-Instruct/resolve/main/model.safetensors │
├────────┼────────────────────────────────────────────────────────────────┤
│ Output │ model.apr                                                      │
╰────────┴────────────────────────────────────────────────────────────────╯

╭──────────────┬───────╮
│ Architecture │ Auto  │
├──────────────┼───────┤
│   Validation │ Basic │
╰──────────────┴───────╯

  ◉ Importing

  ✗ Import failed
error: Validation failed: Invalid model format: Resource not found (404): Qwen/Qwen2.5-1.5B-Instruct/resolve/main/model.safetensors. Fix: verify the model name exists on huggingface.co/models

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