class RSpec::Core::Formatters::Loader

def setup_default(output_stream, deprecation_stream)
  if @formatters.empty?
    add default_formatter, output_stream
  end
  unless @formatters.any? { |formatter| DeprecationFormatter === formatter }
    add DeprecationFormatter, deprecation_stream, output_stream
  end
  if RSpec.configuration.profile_examples? && !existing_formatter_implements?(:dump_profile)
    add RSpec::Core::Formatters::ProfileFormatter, output_stream
  end
end