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improve docstring of doc formatting (#7162)

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so it shows up nice
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Harrison Chase 2023-07-04 16:31:29 -07:00 committed by GitHub
parent 2984803597
commit e8531769f7
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1 changed files with 7 additions and 6 deletions
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13
langchain/schema/prompt_template.py
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@ -164,12 +164,13 @@ def format_document(doc: Document, prompt: BasePromptTemplate) -> str:
Example:
.. code-block:: python
from langchain.schema import Document
from langchain.prompts import PromptTemplate
doc = Document(page_content="This is a joke", metadata={"page": "1"})
prompt = PromptTemplate.from_template("Page {page}: {page_content}")
format_document(doc, prompt)
>>> "Page 1: This is a joke"
from langchain.schema import Document
from langchain.prompts import PromptTemplate
doc = Document(page_content="This is a joke", metadata={"page": "1"})
prompt = PromptTemplate.from_template("Page {page}: {page_content}")
format_document(doc, prompt)
>>> "Page 1: This is a joke"
"""
base_info = {"page_content": doc.page_content, **doc.metadata}
missing_metadata = set(prompt.input_variables).difference(base_info)