Key
import type { Key } from "https://googleapis.deno.dev/v1/datastore:v1.ts";A unique identifier for an entity. If a key's partition ID or any of its path kinds or names are reserved/read-only, the key is reserved/read-only. A reserved/read-only key is forbidden in certain documented contexts.
§Properties
Entities are partitioned into subsets, currently identified by a project ID and namespace ID. Queries are scoped to a single partition.
The entity path. An entity path consists of one or more elements composed
of a kind and a string or numerical identifier, which identify entities.
The first element identifies a root entity, the second element identifies
a child of the root entity, the third element identifies a child of the
second entity, and so forth. The entities identified by all prefixes of the
path are called the element's ancestors. An entity path is always fully
complete: all of the entity's ancestors are required to be in the path
along with the entity identifier itself. The only exception is that in some
documented cases, the identifier in the last path element (for the entity)
itself may be omitted. For example, the last path element of the key of
Mutation.insert may have no identifier. A path can never be empty, and a
path can have at most 100 elements.