GoogleApi.Firestore.V1beta1.Model.DocumentMask (google_api_firestore v0.21.3) View Source
A set of field paths on a document. Used to restrict a get or update operation on a document to a subset of its fields. This is different from standard field masks, as this is always scoped to a Document, and takes in account the dynamic nature of Value.
nil) - The list of field paths in the mask. See Document.fields for a field path syntax reference.