# File lib/faraday/request/multipart.rb, line 6
    def call(env)
      match_content_type(env) do |params|
        env[:request] ||= {}
        env[:request][:boundary] ||= DEFAULT_BOUNDARY
        env[:request_headers][CONTENT_TYPE] += ";boundary=#{env[:request][:boundary]}"
        env[:body] = create_multipart(env, params)
      end
      @app.call env
    end