pub fn noFileWriteFilePositional(userdata: ?*anyopaque, file: File, header: []const u8, file_reader: *Io.File.Reader, limit: Io.Limit, offset: u64) File.WriteFilePositionalError!usize
pub fn noFileWriteFilePositional(userdata: ?*anyopaque, file: File, header: []const u8, file_reader: *Io.File.Reader, limit: Io.Limit, offset: u64) File.WriteFilePositionalError!usize { _ = userdata; _ = file; _ = header; _ = file_reader; _ = limit; _ = offset; return error.Unimplemented; }