pub fn add_int(writer: anytype, number: u32) !void {
  try writer.writeIntBig(u32, number);
}

pub fn add_short(writer: anytype, number: u16) !void {
  try writer.writeIntBig(u16, number);
}

pub fn add_byte(writer: anytype, byte: u8) !void {
  try writer.writeByte(byte);
}

pub fn add_string(writer: anytype, str: []const u8) !void {
  try writer.writeAll(str);
  try writer.writeByte('\x00');
}