"""Authentication helpers for various LLM providers.

Submodules:
- anthropic_auth: Anthropic Claude Max/Pro OAuth authentication
- github_auth: GitHub Copilot authentication (with enterprise support)
- gemini_auth: Gemini CLI (Google Cloud Code Assist) OAuth authentication
- antigravity_auth: Antigravity (Gemini 3, Claude, GPT-OSS via Google Cloud) OAuth
- openai_codex_auth: OpenAI Codex (ChatGPT Plus/Pro) OAuth authentication
"""

from __future__ import annotations
