DataItem

A piece of data in a Dataset. Could be an image, a video, a document or plain text.

JSON representation 
{
  "name": string,
  "createTime": string,
  "updateTime": string,
  "labels": {
    string: string,
    ...
  },
  "payload": value,
  "etag": string
}
Fields
name

string

Output only. The resource name of the DataItem.
createTime

string (Timestamp format)

Output only. timestamp when this DataItem was created.

A timestamp in RFC3339 UTC "Zulu" format, with nanosecond resolution and up to nine fractional digits. Examples: "2014-10-02T15:01:23Z" and "2014-10-02T15:01:23.045123456Z".
updateTime

string (Timestamp format)

Output only. timestamp when this DataItem was last updated.

A timestamp in RFC3339 UTC "Zulu" format, with nanosecond resolution and up to nine fractional digits. Examples: "2014-10-02T15:01:23Z" and "2014-10-02T15:01:23.045123456Z".
labels

map (key: string, value: string)

Optional. The labels with user-defined metadata to organize your DataItems.

label keys and values can be no longer than 64 characters (Unicode codepoints), can only contain lowercase letters, numeric characters, underscores and dashes. International characters are allowed. No more than 64 user labels can be associated with one DataItem(System labels are excluded).

See https://goo.gl/xmQnxf for more information and examples of labels. System reserved label keys are prefixed with "aiplatform.googleapis.com/" and are immutable.
payload

value (Value format)

Required. The data that the DataItem represents (for example, an image or a text snippet). The schema of the payload is stored in the parent Dataset's metadata schema's dataItemSchemaUri field.
etag

string

Optional. Used to perform consistent read-modify-write updates. If not set, a blind "overwrite" update happens.