Incompatibility with recent Starlette versions (missing app.route)

[polkorny]

Describe the bug
When running tests against newer versions of Starlette(1.0), the following error occurs:

AttributeError: 'Starlette' object has no attribute 'route'

To Reproduce
Example pattern used in tests:

@app.route("/t1")
@limiter.limit("2/second")
def handler(request):
    return PlainTextResponse("ok")

Expected behavior
Compatibility with newer Starlette versions, or documented version constraints.

Your app (please complete the following information):
slowapi: 0.1.9
starlette: 1.0
python: 3.13

Additional context
This was encountered while packaging for Debian, where newer Starlette versions are used.