title: boto3 aws api - Listing available instance types
body: <p>Instance types: (t2.micro, t2.small, c4.large...) those listed here:
  <a href="http://docs.aws.amazon.com/AWSEC2/latest/UserGuide/instance-types.html" rel="noreferrer">http://docs.aws.amazon.com/AWSEC2/latest/UserGuide/instance-types.html</a></p>
  
  <p>I want to access a list of these through boto3.
  something like: </p>
  
  <pre><code>conn.get_all_instance_types()
  </code></pre>
  
  <p>or even</p>
  
  <pre><code>conn.describe_instance_types()['InstanceTypes'][0]['Name']
  </code></pre>
  
  <p>which everything seems to look like in this weird api.</p>
  
  <p>I've looked through the docs for client and ServiceResource, but i can't find anything that seems to come close.
  I haven't even found a hacky solution that lists something else that happen to represent all the instance types.</p>
  
  <p>Anyone with more experience of boto3?</p>