catch function mapping overwriting existing endpoint

The most common error I run into when rapidly making a little klein app is when I accidentally overwrite a function when I copy an existing route or accidentally name it the same, could we catch this like in Flask?

@route('/')
def home(request):
    return 'Hello, world!'
    
@route('/foobar')
def home(request):
    return 'Hello, foobar!'

run("localhost", 8080)

[-] Site starting on 8080

vs

app = Flask(__name__)

@app.route("/")
def home():
    return "Hello World!"

@app.route('/foobar')
def home():
    return 'Hello, foobar!'
        
if __name__ == "__main__":
    app.run()

AssertionError: View function mapping is overwriting an existing endpoint function: home

The issue names Klein's @route decorator and run() entry point but no files or tests. Reproduce the two snippets, then trace how route functions are registered; done means duplicate endpoint names are reported at startup while distinct endpoint names continue to work.