1const parseU64 = @import("error_union_parsing_u64.zig").parseU64;
 2
 3fn doAThing(str: []u8) void {
 4    const number = parseU64(str, 10) catch blk: {
 5        // do things
 6        break :blk 13;
 7    };
 8    _ = number; // number is now initialized
 9}
10
11// syntax