Values:
STATE_UNSPECIFIED (0):
The state of the environment is unknown.
CREATING (1):
The environment is in the process of being
created.
RUNNING (2):
The environment is currently running and
healthy. It is ready for use.
UPDATING (3):
The environment is being updated. It remains
usable but cannot receive additional update
requests or be deleted at this time.
DELETING (4):
The environment is undergoing deletion. It
cannot be used.
ERROR (5):
The environment has encountered an error and
cannot be used.