This proto can only be used for tasks in a queue which has
PULL type. It currently
exists for backwards compatibility with the App Engine Task Queue
SDK. This message type maybe returned with methods
get, when the
response view is FULL.
A data payload consumed by the worker to
execute the task.
The tasks's tag.
The tag is less than 500 characters.
SDK compatibility: Although the SDK allows tags to be either
only UTF-8 encoded tags can be used in Cloud Tasks. If a tag
isn't UTF-8 encoded, the tag will be empty when the task is
returned by Cloud Tasks.