prompt: You will be provided with a partial code base and an issue statement explaining a problem to resolve.
  <issue>
  [V2.2.0] ChatPromptBuilder is not export
  **Describe the bug**
  v2.2.0 => ChatPromptBuilder is not export
  
  **Error message**
  <img width="1102" alt="image" src="https://github.com/deepset-ai/haystack/assets/15232298/b9372767-42f5-464c-832f-cca38a00cf60">
  
  
  
  </issue>
  <code>
  [start of haystack/components/builders/__init__.py]
  1 # SPDX-FileCopyrightText: 2022-present deepset GmbH <info@deepset.ai>
  2 #
  3 # SPDX-License-Identifier: Apache-2.0
  4 
  5 from haystack.components.builders.answer_builder import AnswerBuilder
  6 from haystack.components.builders.dynamic_chat_prompt_builder import DynamicChatPromptBuilder
  7 from haystack.components.builders.dynamic_prompt_builder import DynamicPromptBuilder
  8 from haystack.components.builders.prompt_builder import PromptBuilder
  9 
  10 __all__ = ["AnswerBuilder", "PromptBuilder", "DynamicPromptBuilder", "DynamicChatPromptBuilder"]
  11
  [end of haystack/components/builders/__init__.py]
  </code>
  
  I need you to solve this issue by generating a single patch file that I can apply directly to this repository using git apply. Please respond with a single patch file in the following format.
  <patch>
  diff --git a/file.py b/file.py
  --- a/file.py
  +++ b/file.py
  @@ -1,27 +1,35 @@
   def euclidean(a, b):
  -    while b:
  -        a, b = b, a % b
  -    return a
  +    if b == 0:
  +        return a
  +    return euclidean(b, a % b)
   
   
   def bresenham(x0, y0, x1, y1):
       points = []
       dx = abs(x1 - x0)
       dy = abs(y1 - y0)
  -    sx = 1 if x0 < x1 else -1
  -    sy = 1 if y0 < y1 else -1
  -    err = dx - dy
  +    x, y = x0, y0
  +    sx = -1 if x0 > x1 else 1
  +    sy = -1 if y0 > y1 else 1
   
  -    while True:
  -        points.append((x0, y0))
  -        if x0 == x1 and y0 == y1:
  -            break
  -        e2 = 2 * err
  -        if e2 > -dy:
  -            err -= dy
  -            x0 += sx
  -        if e2 < dx:
  -            err += dx
  -            y0 += sy
  +    if dx > dy:
  +        err = dx / 2.0
  +        while x != x1:
  +            points.append((x, y))
  +            err -= dy
  +            if err < 0:
  +                y += sy
  +                err += dx
  +            x += sx
  +    else:
  +        err = dy / 2.0
  +        while y != y1:
  +            points.append((x, y))
  +            err -= dx
  +            if err < 0:
  +                x += sx
  +                err += dy
  +            y += sy
  +
  +    points.append((x, y))
       return points
  
  </patch>
golden_diff: diff --git a/haystack/components/builders/__init__.py b/haystack/components/builders/__init__.py
  --- a/haystack/components/builders/__init__.py
  +++ b/haystack/components/builders/__init__.py
  @@ -3,8 +3,9 @@
   # SPDX-License-Identifier: Apache-2.0
   
   from haystack.components.builders.answer_builder import AnswerBuilder
  +from haystack.components.builders.chat_prompt_builder import ChatPromptBuilder
   from haystack.components.builders.dynamic_chat_prompt_builder import DynamicChatPromptBuilder
   from haystack.components.builders.dynamic_prompt_builder import DynamicPromptBuilder
   from haystack.components.builders.prompt_builder import PromptBuilder
   
  -__all__ = ["AnswerBuilder", "PromptBuilder", "DynamicPromptBuilder", "DynamicChatPromptBuilder"]
  +__all__ = ["AnswerBuilder", "PromptBuilder", "DynamicPromptBuilder", "DynamicChatPromptBuilder", "ChatPromptBuilder"]
  
verification_info: {"golden_diff": "diff --git a/haystack/components/builders/__init__.py b/haystack/components/builders/__init__.py\n--- a/haystack/components/builders/__init__.py\n+++ b/haystack/components/builders/__init__.py\n@@ -3,8 +3,9 @@\n # SPDX-License-Identifier: Apache-2.0\n \n from haystack.components.builders.answer_builder import AnswerBuilder\n+from haystack.components.builders.chat_prompt_builder import ChatPromptBuilder\n from haystack.components.builders.dynamic_chat_prompt_builder import DynamicChatPromptBuilder\n from haystack.components.builders.dynamic_prompt_builder import DynamicPromptBuilder\n from haystack.components.builders.prompt_builder import PromptBuilder\n \n-__all__ = [\"AnswerBuilder\", \"PromptBuilder\", \"DynamicPromptBuilder\", \"DynamicChatPromptBuilder\"]\n+__all__ = [\"AnswerBuilder\", \"PromptBuilder\", \"DynamicPromptBuilder\", \"DynamicChatPromptBuilder\", \"ChatPromptBuilder\"]\n", "issue": "[V2.2.0] ChatPromptBuilder is not export\n**Describe the bug**\r\nv2.2.0 => ChatPromptBuilder is not export\r\n\r\n**Error message**\r\n<img width=\"1102\" alt=\"image\" src=\"https://github.com/deepset-ai/haystack/assets/15232298/b9372767-42f5-464c-832f-cca38a00cf60\">\r\n\r\n\n", "before_files": [{"content": "# SPDX-FileCopyrightText: 2022-present deepset GmbH <info@deepset.ai>\n#\n# SPDX-License-Identifier: Apache-2.0\n\nfrom haystack.components.builders.answer_builder import AnswerBuilder\nfrom haystack.components.builders.dynamic_chat_prompt_builder import DynamicChatPromptBuilder\nfrom haystack.components.builders.dynamic_prompt_builder import DynamicPromptBuilder\nfrom haystack.components.builders.prompt_builder import PromptBuilder\n\n__all__ = [\"AnswerBuilder\", \"PromptBuilder\", \"DynamicPromptBuilder\", \"DynamicChatPromptBuilder\"]\n", "path": "haystack/components/builders/__init__.py"}]}