> For the complete documentation index, see [llms.txt](https://trizen.gitbook.io/sidef-lang/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://trizen.gitbook.io/sidef-lang/programming_tasks/m/modulinos.md).

# Modulinos

```ruby
# Life.sm

func meaning_of_life {
    42
}

if (__FILE__ == __MAIN__) {
    say "Main: The meaning of life is #{meaning_of_life()}"
}
```

```ruby
# test.sf

include Life

say "Test: The meaning of life is #{Life::meaning_of_life()}."
```