pullToRefreshSizeToWire function
PullToRefreshSize wire values are NOT sequential (DEFAULT=1, LARGE=0 in
the old codegen) — a plain enum's .index would be reversed.
Implementation
int pullToRefreshSizeToWire(PullToRefreshSize size) => switch (size) {
PullToRefreshSize.DEFAULT => 1,
PullToRefreshSize.LARGE => 0,
};