# Hello world!

This is an *example* **yay**!

:::{if=cat}
This should only be shown to cats
:::


``` {.python .run}
flags.append("cat")
```


::::{if=cat}
This should only be shown to cats the second time
::::

This should be seen by all.

[!builtin_commands.opendatatask]{}

[This too!]{if=cat}

[What]{.co}

[An inline command with contents and **bold** and another [!builtin_commands.nop]{} inside!]{c=builtin_commands.nop}

[!builtin_commands.nop]{a=b} <!-- A special command! WOW -->