<p>With SQLAlchemy, is there a way to know beforehand whether a relation would be lazy-loaded?<br>
For example, given a lazy parent->children relation and an instance X of "parent", I'd like to know if "X.children" is already loaded, without triggering the query.</p>

I think you could look at the child's
```
__dict__
```
attribute dictionary to check if the data is already there or not.