# File lib/faraday/request/multipart.rb, line 8
    def call(env)
      match_content_type(env) do |params|
        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