CLI for Gmail, Calendar, Drive, Contacts, Sheets, and Docs via Google Workspace API.

• Covers six Google services with commands for searching/sending emails, managing calendar events with color support, querying Drive, listing contacts, and reading/updating Sheets
• Gmail operations include search, send (plain/HTML/multi-line), draft creation, and reply handling; supports multiple input methods (inline, file, stdin)
• Calendar commands create, update, and list events with ISO date ranges and 11 built-in event colors
• Sheets operations support get, update, append, clear, and metadata retrieval with JSON input/output
• Requires one-time OAuth setup via gog auth with a Google client secret file; supports multiple accounts and environment variable configuration for scripting