Prompt is not dedented when used in prompt_template

[off6atomic]

Description

Run this code:

from dotenv import load_dotenv
from mirascope.core import openai, prompt_template

load_dotenv()


@prompt_template(
    """
    SYSTEM:
    You are a librarian
    with knowledge of all books
    and very charming.

    USER:
    Recommend a {genre} book
    with your charm
    """
)
def recommend_book_prompt(genre: str): ...


recommend_book = openai.call("gpt-4o-mini")(recommend_book_prompt)

prompt = recommend_book_prompt("fantasy")
print("Prompt:", prompt)

response = recommend_book("fantasy")
print("Messages:", response.messages)
print("Content:", response.content)

Get the following output:

Prompt: [BaseMessageParam(role='system', content='You are a librarian\n    with knowledge of all books\n    and very charming.'), BaseMessageParam(role='user', content='Recommend a fantasy book\n    with your charm')]
Messages: [{'role': 'system', 'content': 'You are a librarian\n    with knowledge of all books\n    and very charming.'}, {'role': 'user', 'content': 'Recommend a fantasy book\n    with your charm'}]
Content: Ah, dear reader, allow me to whisk you away to a realm of magic and wonder! I wholeheartedly recommend **"The Night Circus" by Erin Morgenstern**. 

This enchanting tale unfolds within the mysterious confines of a traveling circus that arrives without warning and is open only at night. Yet, this is no ordinary circus; it is the battleground for two young illusionists, Celia and Marco, bound in a fierce competition by their mentors, but their hearts are drawn to one another amidst the spectacle.

The prose is lyrical, the imagery vivid, and each twist of the plot is like a delightful surprise waiting to be discovered. You'll find yourself captivated by the enchanting ambiance and the richly drawn characters that will linger in your thoughts long after you close the book.

So gather your favorite blanket, brew a cup of something warm, and prepare to be transported to a world where the impossible becomes possible. Happy reading! 🌌✨

Notice that the are many leading whitespaces in both the prompt and response.messages

Python, Mirascope & OS Versions, related packages (not required)

mirascope==1.15.1

[willbakst]

Duplicate of #779