Document Loaders load data from external sources (text files, PDFs, websites) into documents.
python
from langchain_community.document_loaders import TextLoader
loader = TextLoader("my_document.txt")
documents = loader.load()
print(documents[0].page_content[:100]) # Print first 100 charsYou should see
(This loads the text inside my_document.txt as a LangChain Document object.)