Values:
EVENT_TYPE_UNSPECIFIED (0):
An unspecified event type.
CONFIG (1):
An event representing discovery configuration
in effect.
ENTITY_CREATED (2):
An event representing a metadata entity being
created.
ENTITY_UPDATED (3):
An event representing a metadata entity being
updated.
ENTITY_DELETED (4):
An event representing a metadata entity being
deleted.
PARTITION_CREATED (5):
An event representing a partition being
created.
PARTITION_UPDATED (6):
An event representing a partition being
updated.
PARTITION_DELETED (7):
An event representing a partition being
deleted.