class SemanticLogger::Formatters::Raw

def exception
  return unless log.exception
  root = hash
  log.each_exception do |exception, i|
    name       = i.zero? ? :exception : :cause
    root[name] = {
      name:        exception.class.name,
      message:     exception.message,
      stack_trace: exception.backtrace
    }
    root = root[name]
  end
end