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fix docs
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@@ -73,12 +73,39 @@ multiple_input_prompt.format(adjective="funny", content="chickens")
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You can create custom prompt templates that format the prompt in any way you want. For more information, see [Custom Prompt Templates](examples/custom_prompt_template.ipynb).
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<!-- TODO(shreya): Add link to Jinja -->
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:::{note}
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Currently, the template should be formatted as a Python f-string. We also support Jinja2 templates (see [Using Jinja templates](examples/custom_prompt_template.ipynb)). In the future, we will support more templating languages such as Mako.
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:::
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Currently, the default template format is Python f-string. We also support [Jinja2](https://jinja.palletsprojects.com/en/3.1.x/) templates (see example below). In the future, we will support more templating languages such as Mako.
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```python
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from langchain import PromptTemplate
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multiple_input_prompt = PromptTemplate(
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input_variables=["adjective", "content"],
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template="Tell me a {{ adjective }} joke about {{ content }}.",
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template_format="jinja2",
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)
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multiple_input_prompt.format(adjective="funny", content="chickens")
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# -> "Tell me a funny joke about chickens."
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```
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You can also apply partial formatting to a `PromptTemplate` object:
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```python
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from langchain import PromptTemplate
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multiple_input_prompt = PromptTemplate(
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input_variables=["adjective", "content"],
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template="Tell me a {adjective} joke about {content}.",
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)
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# Format the prompt with only the adjective
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multiple_input_prompt.pformat(adjective="funny")
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# Format the prompt with the content
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multiple_input_prompt.format(content="chickens")
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# -> "Tell me a funny joke about chickens."
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```
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## Load a prompt template from LangChainHub
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