Appearance
Events 
@input (number: String, phoneObject: Object) 
in vue-tel-input@next (Vue 3), use
@on-input
Fires when the input changes
@validate (phoneObject: Object) 
Fires when the correctness of the phone number changes (from true to false or vice-versa) and when the component is mounted
@country-changed (countryObject: Object) 
Fires when country changed (even for the first time)
@blur 
Fires on blur event
@focus 
Fires on focus event
@space 
Fires on keyup.space event
@enter 
Fires on keyup.enter event
@open 
Fires when the flags dropdown opens
@close 
Fires when the flags dropdown closes