title: What is a 'map' in terms of Ansible variables?
body: <p>In Ansible's documentation, they are using the <code>map</code> keyword: <a href="http://docs.ansible.com/set_fact_module.html" rel="noreferrer">http://docs.ansible.com/set_fact_module.html</a></p>
  
  <p>In Ansible's documentation, I cannot find any information about <code>map</code></p>
  
  <p>What is it?</p>