<p dir="auto"><a target="_blank" rel="noopener noreferrer nofollow" href="https://user-images.githubusercontent.com/13930091/89759379-a14d8200-db1c-11ea-8656-b4e2d3c322d3.png"><img src="https://user-images.githubusercontent.com/13930091/89759379-a14d8200-db1c-11ea-8656-b4e2d3c322d3.png" alt="image" style="max-width: 100%;"></a></p>
<h3 dir="auto">First check</h3>
<ul class="contains-task-list">
<li class="task-list-item"><input type="checkbox" id="" disabled="" class="task-list-item-checkbox" checked=""> I added a very descriptive title to this issue.</li>
<li class="task-list-item"><input type="checkbox" id="" disabled="" class="task-list-item-checkbox" checked=""> I used the GitHub search to find a similar issue and didn't find it.</li>
<li class="task-list-item"><input type="checkbox" id="" disabled="" class="task-list-item-checkbox" checked=""> I searched the FastAPI documentation, with the integrated search.</li>
<li class="task-list-item"><input type="checkbox" id="" disabled="" class="task-list-item-checkbox" checked=""> I already searched in Google "How to X in FastAPI" and didn't find any information.</li>
<li class="task-list-item"><input type="checkbox" id="" disabled="" class="task-list-item-checkbox" checked=""> I already read and followed all the tutorial in the docs and didn't find an answer.</li>
<li class="task-list-item"><input type="checkbox" id="" disabled="" class="task-list-item-checkbox" checked=""> I already checked if it is not related to FastAPI but to <a href="https://github.com/samuelcolvin/pydantic">Pydantic</a>.</li>
<li class="task-list-item"><input type="checkbox" id="" disabled="" class="task-list-item-checkbox" checked=""> I already checked if it is not related to FastAPI but to <a href="https://github.com/swagger-api/swagger-ui">Swagger UI</a>.</li>
<li class="task-list-item"><input type="checkbox" id="" disabled="" class="task-list-item-checkbox" checked=""> I already checked if it is not related to FastAPI but to <a href="https://github.com/Redocly/redoc">ReDoc</a>.</li>
<li class="task-list-item"><input type="checkbox" id="" disabled="" class="task-list-item-checkbox" checked=""> After submitting this, I commit to one of:
<ul dir="auto">
<li>Read open issues with questions until I find 2 issues where I can help someone and add a comment to help there.</li>
<li>I already hit the "watch" button in this repository to receive notifications and I commit to help at least 2 people that ask questions in the future.</li>
<li>Implement a Pull Request for a confirmed bug.</li>
</ul>
</li>
</ul>
<h3 dir="auto">Description</h3>
<p dir="auto">When including a <code class="notranslate">List</code> in <code class="notranslate">response_model</code>, pycharm show this alert:</p>
<p dir="auto"><a target="_blank" rel="noopener noreferrer nofollow" href="https://user-images.githubusercontent.com/7843637/89673435-b9bf6180-d8bc-11ea-8b40-00f99b5c346a.png"><img src="https://user-images.githubusercontent.com/7843637/89673435-b9bf6180-d8bc-11ea-8b40-00f99b5c346a.png" alt="image" style="max-width: 100%;"></a></p>
<p dir="auto">Is this expected?</p>
<h3 dir="auto">Environment</h3>
<ul dir="auto">
<li>OS: Linux</li>
<li>FastAPI Version: 0.58.0</li>
<li>Python version: 3.8.5</li>
</ul>