langchain/document_loaders/spreedly.py/SpreedlyLoader/__init__
class SpreedlyLoader:    def __init__(self, access_token: str, resource: str) -> None:
        self.access_token = access_token
        self.resource = resource
        self.headers = {
            "Authorization": f"Bearer {self.access_token}",
            "Accept": "application/json",
        }