Values:
MEMBERSHIP_UNSPECIFIED (0):
Reserved for future use.
MEMBERSHIP_INCLUDED (1):
The binding includes the member. The member can be included
directly or indirectly. For example:
- A member is included directly if that member is listed in
the binding.
- A member is included indirectly if that member is in a
Google group or G Suite domain that is listed in the
binding.
MEMBERSHIP_NOT_INCLUDED (2):
The binding does not include the member.
MEMBERSHIP_UNKNOWN_INFO_DENIED (3):
The sender of the request is not allowed to
access the binding.
MEMBERSHIP_UNKNOWN_UNSUPPORTED (4):
The member is an unsupported type. Only
Google Accounts and service accounts are
supported.