Firing a child template event via a parent container event

I have a modal dialog template that is setup like this:

<div class="overlay">
  <div class="modal-content">
    {{#if isNote}}
      {{> note patient=patient}}
      {{> consultation patient=patient}}
  <div class="modal-footer>
    <button id="acceptAction">Accept</button>

Now when the user clicks the acceptAction button I’d like the child template to trigger a save function. Unfortunately some of these functions will be pretty complex, so I’d like to keep these strictly within the template, but there can be a function with the same nae for each of the children. Is there a best practice way of calling this function via the child template?