chore: remove deprecated TGI generators (#7908)

* remove deprecated TGI generators

* rm unused import

docs/pydoc/config/generators_api.yml

@@ -5,12 +5,10 @@ loaders:
  [
  "azure",
  "hugging_face_local",
- "hugging_face_tgi",
  "hugging_face_api",
  "openai",
  "chat/azure",
  "chat/hugging_face_local",
- "chat/hugging_face_tgi",
  "chat/hugging_face_api",
  "chat/openai",
  ]

haystack/components/generators/__init__.py

@@ -7,13 +7,6 @@
 )
 from haystack.components.generators.azure import AzureOpenAIGenerator
 from haystack.components.generators.hugging_face_local import HuggingFaceLocalGenerator
-from haystack.components.generators.hugging_face_tgi import HuggingFaceTGIGenerator
 from haystack.components.generators.hugging_face_api import HuggingFaceAPIGenerator
 
-__all__ = [
- "HuggingFaceLocalGenerator",
- "HuggingFaceTGIGenerator",
- "HuggingFaceAPIGenerator",
- "OpenAIGenerator",
- "AzureOpenAIGenerator",
-]
+__all__ = ["HuggingFaceLocalGenerator", "HuggingFaceAPIGenerator", "OpenAIGenerator", "AzureOpenAIGenerator"]

haystack/components/generators/chat/__init__.py

@@ -7,12 +7,10 @@
 )
 from haystack.components.generators.chat.azure import AzureOpenAIChatGenerator
 from haystack.components.generators.chat.hugging_face_local import HuggingFaceLocalChatGenerator
-from haystack.components.generators.chat.hugging_face_tgi import HuggingFaceTGIChatGenerator
 from haystack.components.generators.chat.hugging_face_api import HuggingFaceAPIChatGenerator
 
 __all__ = [
  "HuggingFaceLocalChatGenerator",
- "HuggingFaceTGIChatGenerator",
  "HuggingFaceAPIChatGenerator",
  "OpenAIChatGenerator",
  "AzureOpenAIChatGenerator",

haystack/utils/hf.py

@@ -7,8 +7,6 @@
 from enum import Enum
 from typing import Any, Callable, Dict, List, Optional, Union
 
-import requests
-
 from haystack import logging
 from haystack.dataclasses import StreamingChunk
 from haystack.lazy_imports import LazyImport
@@ -212,27 +210,6 @@ def resolve_hf_pipeline_kwargs(
  return huggingface_pipeline_kwargs
 
 
-def list_inference_deployed_models(headers: Optional[Dict] = None) -> List[str]:
- """
- List all currently deployed models on HF TGI free tier
-
- :param headers: Optional dictionary of headers to include in the request
- :return: list of all currently deployed models
- :raises Exception: If the request to the TGI API fails
-
- """
- resp = requests.get(
- "https://api-inference.huggingface.co/framework/text-generation-inference", headers=headers, timeout=10
- )
-
- payload = resp.json()
- if resp.status_code != 200:
- message = payload.get("error", "Unknown TGI error")
- error_type = payload.get("error_type", "Unknown TGI error type")
- raise Exception(f"Failed to fetch TGI deployed models: {message}. Error type: {error_type}")
- return [model["model_id"] for model in payload]
-
-
 def check_valid_model(model_id: str, model_type: HFModelType, token: Optional[Secret]) -> None:
  """
  Check if the provided model ID corresponds to a valid model on HuggingFace Hub.

releasenotes/notes/rm-deprecated-tgi-generators-6086bbb36417c0d8.yaml

@@ -0,0 +1,5 @@
+---
+upgrade:
+ - |
+ Deprecated `HuggingFaceTGIGenerator` and `HuggingFaceTGIChatGenerator` have been removed.
+ Use `HuggingFaceAPIGenerator` and `HuggingFaceAPIChatGenerator` instead.