title: JSON to class instance?
body: <p>I have a simple class and JSON :</p>
  
  <pre><code>@dataclass
  class Point:
      x: int
      y: int
  
  jsonString = '{"x": 3, "y": 5}'
  </code></pre>
  
  <p>I want to convert the JSON data to an instance of a point.
  from C# it's easy :</p>
  
  <pre><code>JsonConvert.DeserializeObject&lt;Point&gt;(jsonString);
  </code></pre>
  
  <p><strong><em>How I can do it in Python?</em></strong></p>