title: Where to look for the parameter passed in action generators in redux
body: <p>I have this piece of action generator in one of the files of actions where I see that an object has been passed to the action generator XYZ. I can't copy paste code from the codebase of the place where I work. Where should I look for this object and where is it coming from? Being a newbie to redux, I find it bit difficult to get this thing.</p>
  
  <pre><code>export default xyz = (options = {}) =&gt; {
  
  }
  </code></pre>
  
  <p>I checked mapdispatchtoprops and I see something similar.</p>
  
  <pre><code>xyz: (options = {}) =&gt; {
              dispatch(
                  xyz(options)
              );
          },
  </code></pre>
  
  <p>I still could not get my head around the flow of data in redux in this case.</p>