#compdef {{prog_name}}
_{{prog_name}}() {
  eval $(env COMMANDLINE="${words[1,$CURRENT]}" {{complete_var}}=complete-zsh {% for k, v in extra_env.items() %} {{k}}={{v}}{% endfor %} {{prog_name}})
}
if [[ "$(basename -- ${(%):-%x})" != "_{{prog_name}}" ]]; then
  compdef _{{prog_name}} {{prog_name}}
fi