fn initOptionalStringList(s: *Serialize, list: []const ?[]const u8) ![]const Configuration.OptionalString
fn initOptionalStringList(s: *Serialize, list: []const ?[]const u8) ![]const Configuration.OptionalString { const wc = s.wc; const result = try s.arena.alloc(Configuration.OptionalString, list.len); for (result, list) |*dest, src| dest.* = try wc.addOptionalString(src); return result; }