Can't use mustache/jinja2 templates with an argument named "template"

[ikbenale]

Checked other resources

• I added a very descriptive title to this issue.
• I searched the LangChain documentation with the integrated search.
• I used the GitHub search to find a similar question and didn't find it.
• I am sure that this is a bug in LangChain rather than my code.
• The bug is not resolved by updating to the latest stable version of LangChain (or the specific integration package).

Example Code

>>> from langchain_core.prompts import PromptTemplate
>>> prompt = PromptTemplate.from_template("Say {template}")
>>> prompt.format(template="foo")
'Say foo'
>>> prompt = PromptTemplate.from_template("Say {{template}}", template_format="mustache")
>>> prompt.format(template="foo")
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "/Users/alejandro/src/github.com/langchain-ai/langchain/libs/core/langchain_core/prompts/prompt.py", line 179, in format
    return DEFAULT_FORMATTER_MAPPING[self.template_format](self.template, **kwargs)
TypeError: mustache_formatter() got multiple values for argument 'template'
>>> prompt = PromptTemplate.from_template("Say {{template}}", template_format="jinja2")
>>> prompt.format(template="foo")
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "/Users/alejandro/src/github.com/langchain-ai/langchain/libs/core/langchain_core/prompts/prompt.py", line 179, in format
    return DEFAULT_FORMATTER_MAPPING[self.template_format](self.template, **kwargs)
TypeError: jinja2_formatter() got multiple values for argument 'template'

Error Message and Stack Trace (if applicable)

File "/Users/alejandro/src/github.com/langchain-ai/langchain/libs/core/langchain_core/prompts/prompt.py", line 179, in format
return DEFAULT_FORMATTER_MAPPING[self.template_format](self.template, **kwargs)
TypeError: mustache_formatter() got multiple values for argument 'template'

Description

• Trying to format a prompt template in mustache or jinja2 with a template argument
• LangChain throws a TypeError

System Info

System Information

OS: Darwin
OS Version: Darwin Kernel Version 23.6.0: Mon Jul 29 21:13:00 PDT 2024; root:xnu-10063.141.2~1/RELEASE_X86_64
Python Version: 3.10.14 (main, Mar 19 2024, 21:46:16) [Clang 15.0.0 (clang-1500.3.9.4)]

Package Information

langchain_core: 0.2.38
langchain: 0.2.16
langchain_community: 0.2.16
langsmith: 0.1.98
langchain_experimental: 0.0.65
langchain_openai: 0.1.23
langchain_text_splitters: 0.2.4

Optional packages not installed

langgraph
langserve

Other Dependencies

aiohttp: 3.10.1
async-timeout: 4.0.3
dataclasses-json: 0.6.7
jsonpatch: 1.33
numpy: 1.26.4
openai: 1.40.1
orjson: 3.10.6
packaging: 24.1
pydantic: 2.8.2
PyYAML: 6.0.2
requests: 2.32.3
SQLAlchemy: 2.0.32
tenacity: 8.5.0
tiktoken: 0.7.0
typing-extensions: 4.12.2