output {
  kafka {
{% for key, value in logstash_kafka_options.items() %}
{%   if value is number %}
    {{ key }} => {{ value }}
{%   elif value is iterable and value is not string %}
    {{ key }} => "{{ value | join(',') }}"
{%   else %}
    {{ key }} => "{{ value }}"
{%   endif %}
{% endfor %}
  }
}