Vast.ai Python SDK

The official Python SDK for Vast.ai, providing programmatic access to GPU cloud resources. Users install the `vastai-sdk` package, which then exposes the `VastAI` client class through the `vastai` module. This SDK allows for searching, launching, and managing GPU instances, mirroring much of the functionality of the Vast.ai CLI. The current version is 0.6.0, with active development.