sdks-io/verizon-apis-python-sdk ? reverse-engineered prompt

Build me a Python SDK for Verizon APIs that feels easy to use for people who just want to make authenticated requests and get data back without dealing with all the HTTP details.

It should let me create a client with a normal constructor or load settings from a .env file, switch between production, staging, dev, QA, and mock server environments, and support the different auth options Verizon uses like OAuth client credentials, VZ M2M token, and session token. I want the SDK to include the main Verizon service areas like device management, device groups, session management, connectivity callbacks, service plans, monitoring, diagnostics, locations, and account related requests.

Please make the package ready to install and use in Python 3.7 plus, with clear docs and examples that show how to initialize the client and call the APIs. If anything is unclear from Verizon’s current docs, look up the latest details online and match the public API behavior as closely as you can.