_complete_from_snap_maybe is a function
_complete_from_snap_maybe () 
{ 
    if [[ "$(which "$1")" =~ /snap/bin/ && ( -e /var/lib/snapd/snap/core/current/usr/lib/snapd/etelpmoc.sh || -e /snap/core/current/usr/lib/snapd/etelpmoc.sh ) ]]; then
        _complete_from_snap "$1";
        return $?;
    fi;
    _completion_loader "$1"
}