Iugu is a Brazilian services and software as a service (SaaS) company. It offers payment-processing software and application programming interfaces for e-commerce websites and mobile applications.
This notebook covers how to load data from the Iugu REST API into a format that can be ingested into LangChain, along with example usage for vectorization. 
from langchain.indexes import VectorstoreIndexCreator
from langchain_community.document_loaders import IuguLoader
The Iugu API requires an access token, which can be found inside of the Iugu dashboard. This document loader also requires a resource option which defines what data you want to load. Following resources are available: Documentation Documentation 
iugu_loader = IuguLoader("charges")

# Create a vectorstore retriever from the loader
# see https://python.langchain.com/en/latest/modules/data_connection/getting_started.html for more details

index = VectorstoreIndexCreator().from_loaders([iugu_loader])
iugu_doc_retriever = index.vectorstore.as_retriever()