A description of the historical or future-looking state of the
value: 0 The "unset" value.
value: 1 The resource originally had one pattern and launched as such, and
additional patterns were added later.
value: 2 The resource has one pattern, but the API owner expects to add more
later. (This is the inverse of ORIGINALLY_SINGLE_PATTERN, and prevents
that from being necessary once there are multiple patterns.)