* `prefix`: to set the path prefix for a router. Up to now, this was only possible when calling `include_router`.
* `tags`: OpenAPI tags to apply to all the *path operations* in this router.

For example:

```Python
from fastapi import APIRouter, Depends


async def some_dependency():
    return

</pre>

<h3 id="Integer_literals">Integer literals</h3>

<p>
An integer literal is a sequence of digits representing an
<a href="#Constants">integer constant</a>.
An optional prefix sets a non-decimal base: <code>0b</code> or <code>0B</code>
for binary, <code>0</code>, <code>0o</code>, or <code>0O</code> for octal,
and <code>0x</code> or <code>0X</code> for hexadecimal
[<a href="#Go_1.13">Go 1.13</a>].