1  ---
 2  features:
 3    - |
 4      `ChatPromptBuilder` now supports special string templates in addition to a list of `ChatMessage` objects.
 5  
 6      This new format is more flexible and allows to include structured parts like images in the templatized
 7      `ChatMessage`.
 8  
 9      ```python
10      from haystack.components.builders import ChatPromptBuilder
11      from haystack.dataclasses.chat_message import ImageContent
12  
13      template = """
14      {% message role="user" %}
15      Hello! I am {{user_name}}. What's the difference between the following images?
16      {% for image in images %}
17      {{ image | templatize_part }}
18      {% endfor %}
19      {% endmessage %}
20      """
21  
22      images=[ImageContent.from_file_path("apple-fruit.jpg"),
23              ImageContent.from_file_path("apple-logo.jpg")]
24  
25      builder = ChatPromptBuilder(template=template)
26      builder.run(user_name="John", images=images)
27      ```