Pakistan, officially the Islamic Republic of Pakistan, is a country in South Asia.
It is the fifth-most populous country, with a population of over 241.5 million, having the second-largest Muslim population as of 2023.
Islamabad is the nation's capital, while Karachi is its largest city and financial centre.


Karachi is the capital city of the Pakistani province of Sindh.
It is the largest city in Pakistan and the 12th largest in the world, 
with a population of over 20 million.
It is situated at the southern tip of the country along the Arabian Sea 
coast and formerly served as the capital of Pakistan


LangChain is a framework designed to simplify the creation of applications using large language models.
As a language model integration framework,
LangChain's use-cases largely overlap with those of language models in general,
including document analysis and summarization, chatbots, and code analysis.