final String[] pair = s.split("=");
                    if (pair.length == 1) {
                        return new Pair<>(StringUtil.EMPTY, pair[0].trim());
                    }
                    if (pair.length == 2) {
                        return new Pair<>(pair[0].trim(), pair[1].trim());
                    }
                    return null;

            result.setAttributes(source.entrySet().stream().filter(e -> !"name".equals(e.getKey()))
                    .map(e -> new Pair<>(e.getKey(), (String) e.getValue())).collect(Collectors.toMap(Pair::getFirst, Pair::getSecond)));
            return result;
        } catch (InstantiationException | IllegalAccessException e) {

            result.setRoles(toStringArray(source.get(ROLES)));
            result.setAttributes(source.entrySet().stream().filter(e -> isAttribute(e.getKey()))
                    .map(e -> new Pair<>(e.getKey(), (String) e.getValue())).collect(Collectors.toMap(Pair::getFirst, Pair::getSecond)));
            return result;
        } catch (InstantiationException | IllegalAccessException e) {

      Method method,
      Scenario scenario,
      boolean fair,
      @Nullable Timeout timeout,
      Outcome expectedOutcome) {
    super(nameFor(method, scenario, fair, timeout, expectedOutcome));
    this.method = method;
    this.scenario = scenario;
    this.timeout = timeout;
    this.expectedOutcome = expectedOutcome;
    this.monitor = new Monitor(fair);
    this.guard = new FlagGuard(monitor);

            final List<Tuple3<String, QueryBuilder, ScoreFunctionBuilder<?>>> boostList = getQueryMap(key).get(toLowerCase(keyword));
            if (boostList != null) {
                boostList.forEach(pair -> list.add(new FilterFunctionBuilder(pair.getValue2(), pair.getValue3())));
            }
        });
    }

    public List<Map<String, Object>> getBoostedDocumentList(final KeyMatch keyMatch) {

      omitNullValues = true;
      return this;
    }

    /**
     * Adds a name/value pair to the formatted output in {@code name=value} format. If {@code value}
     * is {@code null}, the string {@code "null"} is used, unless {@link #omitNullValues()} is
     * called, in which case this name/value pair will not be added.
     */
    @CanIgnoreReturnValue

            result.setAttributes(source.entrySet().stream().filter(e -> !"name".equals(e.getKey()))
                    .map(e -> new Pair<>(e.getKey(), (String) e.getValue())).collect(Collectors.toMap(Pair::getFirst, Pair::getSecond)));
            return result;
        } catch (InstantiationException | IllegalAccessException e) {

            final Pair<String, Float> pair = new Pair<>();
            final String[] values = s.split(":");
            if (values.length == 1) {
                pair.setFirst(values[0].trim());
                pair.setSecond(1.0f);
            } else if (values.length > 1) {
                pair.setFirst(values[0]);
                pair.setSecond(Float.parseFloat(values[1]));
            } else {

                }
            }
            return query;
        }

        protected Pair<String, String> splitField(String defaultField, String field) {
            int indexOf = field.indexOf(':');
            if (indexOf < 0)
                return new Pair<>(field, null);
            final String indexField = indexOf == 0 ? defaultField : field.substring(0, indexOf);

  }

  @CollectionFeature.Require(SERIALIZABLE)
  public void testInverseSerialization() {
    BiMapPair<K, V> pair = new BiMapPair<>(getMap());
    BiMapPair<K, V> copy = SerializableTester.reserialize(pair);
    assertEquals(pair.forward, copy.forward);
    assertEquals(pair.backward, copy.backward);
    assertSame(copy.backward, copy.forward.inverse());
    assertSame(copy.forward, copy.backward.inverse());
  }