title: where does the annotation for a member variable live
body: <p>if i do something like this:</p>
  
  <pre><code>def f(x: str):
      pass
  </code></pre>
  
  <p>i can easily see this type hint for <code>x</code> if i do:</p>
  
  <pre><code>print(f.__annotations__)
  </code></pre>
  
  <p>however, i can't seem to figure out where the annotations live if i do something like this:</p>
  
  <pre><code>class C:
      def __init__(self):
          self.where_is_this_vars_annotation_stored: int = 4
  </code></pre>
  
  <p>does anyone know which <code>__annotations__</code> dict contains <code>where_is_this_vars_annotation_stored</code>'s type hint?</p>