LogTagsFromContext returns the log tags being passed along with the given context.

New creates a new Standard logger for module.

NewContext returns a new Context that carries adds the given log tag mappings (context key -> display string).

NewWithCallDepth creates a new Standard logger for module, and when printing file names and line numbers, it goes extraCallDepth up the stack from where logger was invoked.

CtxLogTags defines a context key that can hold a slice of context keys, the value of which should be logged by a Standard logger if one of those keys is seen in a context during a log call.

TestLogger is a Logger that writes to a TestLogBackend.

TestLogBackend is an interface for logging to a test object (i.e., a *testing.T).

CtxStandardLoggerKey is a type defining context keys used by the Standard logger.