City name:     
Head count:    
City budget:   

...

  import { instantiateComponent } from '@pavelsavara/jsco';

  const instance = await instantiateComponent('./hello/wasm/hello.wasm', {
      'hello:city/city': { sendMessage: console.log }
  });

  const run = instance.exports['hello:city/greeter'].run;

  run({ name: 'Kladno', headCount: 100000, budget: 0n});