Can only be specified if VPC flow logs for this subnetwork is
enabled. Configures whether all, none or a subset of metadata fields
should be added to the reported VPC flow logs. Default is
EXCLUDE_ALL_METADATA.
Values:
UNDEFINED_METADATA (0):
A value indicating that the enum field is not
set.
CUSTOM_METADATA (62450749):
No description available.
EXCLUDE_ALL_METADATA (334519954):
No description available.
INCLUDE_ALL_METADATA (164619908):
No description available.