Esempio con fullcalendar:

miomodulo.esempio1:
  version: 1.x
  js:
      js/fullcalendar.min.js: {}
      js/script.fullcalendar.js: {}
      js/locale/it.js: {}

  css:
    theme:
      js/fullcalendar.min.css: {}
      js/fullcalendar.print.min.css: { media: "print" }
      js/jquery-ui-themes/jquery-ui.theme.min.css: { wieght: 200}

  dependencies:
    - core/jquery
    - core/jquery-ui