module Ougai
module Ougai::Formatters
module Ougai::Logging
module Ougai::Logging::Severity
class Ougai::ChildLogger
class Ougai::Formatters::Base
class Ougai::Formatters::Bunyan
class Ougai::Formatters::Readable
class Ougai::Logger
ougai
1.5.2
# chain
def chain(_severity, _args, _fields, _hooks) raise NotImplementedError end