rm serialize callback handler (#8172)

haystack/components/generators/utils.py

@@ -2,10 +2,7 @@
 #
 # SPDX-License-Identifier: Apache-2.0
 
-from typing import Callable, Optional
-
 from haystack.dataclasses import StreamingChunk
-from haystack.utils import deserialize_callable, serialize_callable
 
 
 def print_streaming_chunk(chunk: StreamingChunk) -> None:
@@ -15,29 +12,3 @@ def print_streaming_chunk(chunk: StreamingChunk) -> None:
  Prints the tokens of the first completion to stdout as soon as they are received
  """
  print(chunk.content, flush=True, end="")
-
-
-def serialize_callback_handler(streaming_callback: Callable[[StreamingChunk], None]) -> str:
- """
- Serializes the streaming callback handler.
-
- :param streaming_callback:
- The streaming callback handler function
- :returns:
- The full path of the streaming callback handler function
- """
- return serialize_callable(streaming_callback)
-
-
-def deserialize_callback_handler(callback_name: str) -> Optional[Callable[[StreamingChunk], None]]:
- """
- Deserializes the streaming callback handler.
-
- :param callback_name:
- The full path of the streaming callback handler function
- :returns:
- The streaming callback handler function
- :raises DeserializationError:
- If the streaming callback handler function cannot be found
- """
- return deserialize_callable(callback_name)

releasenotes/notes/rm-serialize-callback-handler-5c104eafc6673932.yaml

@@ -0,0 +1,8 @@
+---
+upgrade:
+ - |
+ The `serialize_callback_handler` and `deserialize_callback_handler` utility functions have been removed.
+ Use `serialize_callable` and `deserialize_callable` instead.
+
+ For more information on `serialize_callable` and `deserialize_callable`, see the API reference:
+ https://docs.haystack.deepset.ai/reference/utils-api#module-callable_serialization