# io.k8s.apimachinery.pkg.apis.meta.v1.FieldsV1

From **Kubernetes**.

FieldsV1 stores a set of fields in a data structure like a Trie, in JSON format.

Each key is either a '.' representing the field itself, and will always map to an empty set, or a string representing a sub-field or item. The string will follow one of these four formats: 'f:<name>', where <name> is the name of a field in a struct, or key in a map 'v:<value>', where <value> is the exact json formatted value of a list item 'i:<index>', where <index> is position of a item in a list 'k:<keys>', where <keys> is a map of  a list item's key fields to their unique values If a key maps to an empty Fields value, the field that key represents is part of the set.

The exact format is defined in sigs.k8s.io/structured-merge-diff

- Type: `object`

## JSON Schema

```json
{"description":"FieldsV1 stores a set of fields in a data structure like a Trie, in JSON format.\n\nEach key is either a '.' representing the field itself, and will always map to an empty set, or a string representing a sub-field or item. The string will follow one of these four formats: 'f:\u003cname\u003e', where \u003cname\u003e is the name of a field in a struct, or key in a map 'v:\u003cvalue\u003e', where \u003cvalue\u003e is the exact json formatted value of a list item 'i:\u003cindex\u003e', where \u003cindex\u003e is position of a item in a list 'k:\u003ckeys\u003e', where \u003ckeys\u003e is a map of  a list item's key fields to their unique values If a key maps to an empty Fields value, the field that key represents is part of the set.\n\nThe exact format is defined in sigs.k8s.io/structured-merge-diff","type":"object"}
```