flist.toArray(new FunctionScoreQueryBuilder.FilterFunctionBuilder[flist.size()]))
                    .boostMode(CombineFunction.MULTIPLY));
            reader.addSort(SortBuilders.fieldSort(fessConfig.getIndexFieldClickCount()));
            reader.addSort(SortBuilders.scoreSort());
            return reader;
        }, docPerReq, () -> {
            systemHelper.calibrateCpuLoad();
            ThreadUtil.sleep(interval);

        // set query.
        final QueryBuilder q = buildQuery(query, fields);

        // set function score
        final QueryBuilder queryBuilder = buildFunctionScoreQuery(query, q);
        builder.addSort("_score", SortOrder.DESC);

        // set filter query.
        final List<QueryBuilder> filterList = new ArrayList<>(10);
        if (!tags.isEmpty()) {

                final int maxDocumentCacheSize = fessConfig.getIndexerWebfsMaxDocumentCacheSizeAsInteger();
                builder.setSize(maxDocumentCacheSize <= 0 ? 1 : maxDocumentCacheSize);
                builder.addSort(EsAccessResult.CREATE_TIME, SortOrder.ASC);
            };

            final DocList docList = new DocList();
            final List<EsAccessResult> accessResultList = new ArrayList<>();

                builder.setQuery(QueryBuilders.matchAllQuery());
            }
            if (sortBuilders != null) {
                for (SortBuilder<?> sortBuilder : sortBuilders) {
                    builder.addSort(sortBuilder);
                }
            }
            if (from != null) {
                builder.setFrom(from);
            }
            if (size != null) {
                builder.setSize(size);

pkg net, func TCPAddrFromAddrPort(netip.AddrPort) *TCPAddr
pkg net, func UDPAddrFromAddrPort(netip.AddrPort) *UDPAddr
pkg net, method (*Resolver) LookupNetIP(context.Context, string, string) ([]netip.Addr, error)
pkg net, method (*TCPAddr) AddrPort() netip.AddrPort
pkg net, method (*UDPAddr) AddrPort() netip.AddrPort
pkg net, method (*UDPConn) ReadFromUDPAddrPort([]uint8) (int, netip.AddrPort, error)

      |--123
      |
      |Fox
      |--123--
      |
      """.trimMargin().replace("\n", "\r\n")
    val body =
      MultipartBody.Builder("123")
        .addPart("Quick".toRequestBody(null))
        .addPart("Brown".toRequestBody(null))
        .addPart("Fox".toRequestBody(null))
        .build()
    assertThat(body.boundary).isEqualTo("123")
    assertThat(body.type).isEqualTo(MultipartBody.MIXED)

          this.type = type
        }

      /** Add a part to the body. */
      fun addPart(body: RequestBody) =
        apply {
          addPart(Part.create(body))
        }

      /** Add a part to the body. */
      fun addPart(
        headers: Headers?,
        body: RequestBody,
      ) = apply {
        addPart(Part.create(headers, body))
      }

      /** Add a form data part to the body. */

                            "Invalid sort order: " + termQuery);
                }
            } else {
                sortOrder = SortOrder.ASC;
            }
            context.addSorts(createFieldSortBuilder(sortField, sortOrder));
        }));
        return null;
    }

    builder = builder.addPart(requestBody)
    builder = builder.addPart(headersOf(), requestBody)
    builder = builder.addPart(null, requestBody)
    builder = builder.addFormDataPart("", "")
    builder = builder.addFormDataPart("", "", requestBody)
    builder = builder.addFormDataPart("", null, requestBody)
    builder = builder.addPart(MultipartBody.Part.create(requestBody))

  @Test fun `multipart round trip`() {
    val body =
      MultipartBody.Builder("boundary")
        .setType(MultipartBody.PARALLEL)
        .addPart("Quick".toRequestBody("text/plain".toMediaType()))
        .addFormDataPart("color", "Brown")
        .addFormDataPart("animal", "fox.txt", "Fox".toRequestBody())
        .build()

    val bodyContent = Buffer()