Filter logger allows us to filter lines logged to it before passing on to underlying output logger Creates a logger that removes lines from output when the predicate evaluates true.

Capture logger captures output sent to it in a buffer retaining a reference to its output logger (the logger whose input it is capturing).

Creates a Logger that uses a uses a non-blocking ring buffered channel.

Creates a logger that forks log messages to each of its outputLoggers.

Returns a Logger that wraps the outputLogger passed and does not block on calls to Log and a channel of any errors from the underlying logger.

Provides a logger that sorts key-values with keys in keys before other key-values.

This represents an 'AND' type logger.