Set<String> fieldSet = new HashSet<>();
        fieldSet.add("cluster_name");
        fieldSet.add("status");
        fieldSet.add("timed_out");
        fieldSet.add("number_of_nodes");
        fieldSet.add("number_of_data_nodes");
        fieldSet.add("active_primary_shards");
        fieldSet.add("active_shards");
        fieldSet.add("relocating_shards");

        @SuppressWarnings("unchecked")
        Set<String> fieldSet = (Set<String>) propMap.get(INDEX_ADMIN_ARRAY_FIELD_SET);
        if (fieldSet == null) {
            fieldSet = split(getIndexAdminArrayFields(), ",")
                    .get(stream -> stream.filter(StringUtil::isNotBlank).map(String::trim).collect(Collectors.toSet()));
            propMap.put(INDEX_ADMIN_ARRAY_FIELD_SET, fieldSet);
        }
        return fieldSet;
    }

# Body - Fields { #body-fields }

The same way you can declare additional validation and metadata in *path operation function* parameters with `Query`, `Path` and `Body`, you can declare validation and metadata inside of Pydantic models using Pydantic's `Field`.

## Import `Field` { #import-field }

First, you have to import it:

{* ../../docs_src/body_fields/tutorial001_an_py310.py hl[4] *}


/// warning

        String[] fields = fieldsStr.isEmpty() ? new String[0] : fieldsStr.split(",");
        assertEquals(0, fields.length);
    }

    public void test_indexAdminFloatFields() {
        String fieldsStr = fessConfig.getIndexAdminFloatFields();
        assertEquals("", fieldsStr);
        String[] fields = fieldsStr.isEmpty() ? new String[0] : fieldsStr.split(",");
        assertEquals(0, fields.length);
    }

	return splitSeq(s, sep, len(sep))
}

// FieldsSeq returns an iterator over subslices of s split around runs of
// whitespace characters, as defined by [unicode.IsSpace].
// The iterator yields the same subslices that would be returned by [Fields](s),
// but without constructing a new slice containing the subslices.
func FieldsSeq(s []byte) iter.Seq[[]byte] {
	return func(yield func([]byte) bool) {
		start := -1

                if (fessConfig.isValidSearchLogPermissions(roles.toArray(new String[roles.size()]))) {
                    suggester.indexer()
                            .indexFromSearchWord(sb.toString(), fields.toArray(new String[fields.size()]),
                                    tags.toArray(new String[tags.size()]), roles.toArray(new String[roles.size()]), 1, langs);
                    duplicateSessionMap.put(sessionId, requestedAt);

        if (QueryFieldConfig.SCORE_FIELD.equals(field) || QueryFieldConfig.DOC_SCORE_FIELD.equals(field)) {
            return SortBuilders.scoreSort().order(order);
        }
        return SortBuilders.fieldSort(field).order(order);
    }

    /**
     * Checks if the specified field is a search field.
     * @param field The field name to check.
     * @return True if the field is a search field, false otherwise.

      </codeSegments>
    </class>
    <class locationTracker="locations">
      <name>InputLocation</name>
      <version>4.0.0/4.0.99</version>
      <fields>
        <!-- line, column and source fields are auto-generated by Modello -->
      </fields>
      <codeSegments>
        <codeSegment>
          <version>4.0.0+</version>
          <code>
            <![CDATA[

    @Override

                return fields;
            }

            @Override
            public String[] getQueryAdditionalSearchFields(String... fields) {
                return fields;
            }

            @Override
            public String[] getQueryAdditionalFacetFields(String... fields) {
                return fields;
            }

            @Override

                return fields;
            }

            @Override
            public String[] getQueryAdditionalScrollResponseFields(String... fields) {
                return fields;
            }

            @Override
            public String[] getQueryAdditionalCacheResponseFields(String... fields) {
                return fields;
            }

            @Override