class Faraday::Adapter

def save_response(env, status, body, headers = nil, reason_phrase = nil)
  env.status = status
  env.body = body
  env.reason_phrase = reason_phrase && reason_phrase.to_s.strip
  env.response_headers = Utils::Headers.new.tap do |response_headers|
    response_headers.update headers unless headers.nil?
    yield(response_headers) if block_given?
  end
end