# File lib/faraday/adapter/em_http.rb, line 17
        def request_config(env)
          options = {
            :body => read_body(env),
            :head => env[:request_headers],
            # :keepalive => true,
            # :file => 'path/to/file', # stream data off disk
          }
          configure_compression(options, env)
          options
        end