Different values possible for the state of an accelerator
Values:
STATE_UNSPECIFIED (0):
Default value, do not use
ENABLED (1):
Indicates that the accelerator is enabled and
available to use
DISABLED (2):
Indicates that the accelerator is disabled
and not available to use
UNKNOWN (3):
Indicates that accelerator state is currently
unknown. Requests for enable, disable could be
retried while in this state