input: def generate_html_form():
      """
      This function generates a basic HTML form using JavaScript to submit a user's city and the submit the details to the server.
      
      :return: HTML form with JavaScript to handle form submission
      """
      return """<form id="myForm" onsubmit="submitForm(event)">
    City:<br>
    <input type="text" name="city"><br>
    <input type="submit">
  </form>
  
  <script>
  function submitForm(event) {
    event.preventDefault();
  
    const form = document.getElementById('myForm');
    const city = form.querySelector('input[name="city"]').value;
  
    const data = { city: city };
  
    const options = {
      method: 'POST',
      body: JSON.stringify(data),
      headers: {
        'Content-Type': 'application/json'
      }
    };
  
    fetch('/my-api/submit-form', options)
      .then(response => response.json())
      .then(data => {
        console.log(data);
      });
  }
  </script>
  """
output:     return """<form id="myForm" onsubmit="submitForm(event)">
    City:<br>
    <input type="text" name="city"><br>
    <input type="submit">
  </form>
  
  <script>
  function submitForm(event) {
    event.preventDefault();
  
    const form = document.getElementById('myForm');
    const city = form.querySelector('input[name="city"]').value;
  
    const data = { city: city };
  
    const options = {
      method: 'POST',
      body: JSON.stringify(data),
      headers: {
        'Content-Type': 'application/json'
      }
    };
  
    fetch('/my-api/submit-form', options)
      .then(response => response.json())
      .then(data => {
        console.log(data);
      });
  }
  </script>
  """