* Entries appear in the result {@code ImmutableBiMap} in encounter order.
   *
   * <p>If the mapped keys or values contain duplicates (according to {@link
   * Object#equals(Object)}), an {@code IllegalArgumentException} is thrown when the collection
   * operation is performed. (This differs from the {@code Collector} returned by {@link

    * `Path()`
    * `Query()`
    * `Header()`
    * `Cookie()`

    /** Name of the argument that is {@code null} */
    protected final String argName;

    /** Message code */
    protected final String messageCode;

    /** Arguments for the message */
    protected final Object[] args;

    /**
     * Creates a {@link ClIllegalArgumentException}.
     *
     * @param argName
     *            Name of the argument
     * @param messageCode
     *            Message code

/**
 * Implementation of {@link Multimaps#filterKeys(SetMultimap, Predicate)}.
 *
 * @author Louis Wasserman
 */
@GwtCompatible
final class FilteredKeySetMultimap<K extends @Nullable Object, V extends @Nullable Object>
    extends FilteredKeyMultimap<K, V> implements FilteredSetMultimap<K, V> {

  FilteredKeySetMultimap(SetMultimap<K, V> unfiltered, Predicate<? super K> keyPredicate) {
    super(unfiltered, keyPredicate);
  }

            "schemas": {
                "Body_compute_b_compute__post": {
                    "title": "Body_compute_b_compute__post",
                    "required": ["a", "b"],
                    "type": "object",
                    "properties": {
                        "a": {"title": "A", "type": "integer"},
                        "b": {"title": "B", "type": "string"},
                    },
                },

  }

  public void testToOptionalSingleton() {
    assertThat(Stream.of(1).collect(toOptional())).hasValue(1);
  }

  public void testToOptionalNull() {
    Stream<@Nullable Object> stream = Stream.of((Object) null);
    assertThrows(NullPointerException.class, () -> stream.collect(toOptional()));
  }

  public void testToOptionalMultiple() {
    IllegalArgumentException expected =

        setCreatedBy_GreaterThan(createdBy, null);
    }

    public void setCreatedBy_GreaterThan(String createdBy, ConditionOptionCall<RangeQueryBuilder> opLambda) {
        final Object _value = createdBy;
        RangeQueryBuilder builder = regRangeQ("createdBy", ConditionKey.CK_GREATER_THAN, _value);
        if (opLambda != null) {
            opLambda.callback(builder);
        }
    }

        setCreatedBy_GreaterThan(createdBy, null);
    }

    public void setCreatedBy_GreaterThan(String createdBy, ConditionOptionCall<RangeQueryBuilder> opLambda) {
        final Object _value = createdBy;
        RangeQueryBuilder builder = regRangeQ("createdBy", ConditionKey.CK_GREATER_THAN, _value);
        if (opLambda != null) {
            opLambda.callback(builder);
        }
    }

        setAvailable_GreaterThan(available, null);
    }

    public void setAvailable_GreaterThan(Boolean available, ConditionOptionCall<RangeQueryBuilder> opLambda) {
        final Object _value = available;
        RangeQueryBuilder builder = regRangeQ("available", ConditionKey.CK_GREATER_THAN, _value);
        if (opLambda != null) {
            opLambda.callback(builder);
        }
    }

        this.oid = oid;
        this.name = name;
    }

    /*
     * (non-Javadoc)
     *
     * @see java.lang.Object#equals(java.lang.Object)
     */
    @Override
    public boolean equals(final Object other) {

        if (other instanceof final MIEName terg) {
            if (Objects.equals(this.oid, terg.oid)