// Package fog (Foundation Log) implements a zap-backed logr LogSink that
// integrates with Google Cloud Logging special keys.
//
// # Logging Levels
//
// This package provides an opinionated reconciliation of logr.Logger, Zap levels,
// and Google cloud logging levels:
//
//   - logr.Logger.V(0).Info is equivalent to Google INFO
//   - Any higher V levels (1..n) have their log level set to DEBUG, because it is
//     the only level finer than INFO. An additional field is added to logs with the
//     V level under the `level` key to support additional filtering levels when
//     querying logs.
//   - Errors are always logged, per logr.Logger.
package fog