How to understand which module is responsible for the current webform?

Question

Drupal

I'm trying to insert a metric on drupal.
I looked at how others did it, and it worked.
This piece works and inserts data.

function name_form_webform_client_form_2_alter(&$form, &$form_state) {
  $form['#attributes']['onsubmit'] = "yaCounter1111115.reachGoal('FORM2'); return true;";
  $form['actions']['submit']['#attributes']['id'] = "lid1";
}

I have no connection with the developer, so I'm trying to find out how he determined the name of the form module

Answer 1

Answer here
How to add metric in Drupal 7?