Cro::OpenAPI::RoutesFromDefinition calling the wrong handler

run.sh

#!/usr/bin/env sh

SMP_APP_HOST=localhost SMP_APP_PORT=20000 perl6 service.p6

service.p6

use Cro::HTTP::Server;
use Cro::HTTP::Router;
use Cro::OpenAPI::RoutesFromDefinition;

sub routes() is export {
    openapi 'smp-openapi.yaml'.IO, {
        operation 'anschriftPerIdAbrufen', -> {
            say "In operation handler!";
            content 'application/json', %(Name => 'Daniel');
        }
    }
}

my Cro::Service $http = Cro::HTTP::Server.new(
    http => <1.1>,
    host => %*ENV<SMP_APP_HOST> ||
        die("Missing SMP_APP_HOST in environment"),
    port => %*ENV<SMP_APP_PORT> ||
        die("Missing SMP_APP_PORT in environment"),
    application => routes(),
);
$http.start;
say "Listening at http://%*ENV<SMP_APP_HOST>:%*ENV<SMP_APP_PORT>";
react {
    whenever signal(SIGINT) {
        say "Shutting down...";
        $http.stop;
        done;
    }
}

smp-openapi.yaml

openapi: "3.0.0"
info:
  title: "HALTEC SMP-App"
  version: "1.0.0"
paths:
  /anschrift:
    get:
      operationId: "anschriftPerIdAbrufen"
      responses:
        200:
          description: "erfolgreich"
          content:
            application/json:
              schema:
                $ref: "#/components/schemas/Anschrift"
components:
  schemas:
    Anschrift:
      type: "object"
      required:
        - "Rufname"
      properties:
        ID:
          type: "integer"
          format: "int64"
        Rufname:
          type: "string"