Update docs

docs/source/tutorials/custom_scripts.md

@@ -33,7 +33,7 @@ The `script` argument defines the name of the Python script that is called for e
 CACE expects the custom script to provide a function called `postprocess`. The function signature of `postprocess` is as follows:
 
 ```Python
-def postprocess(results: dict[str, list], conditions: dict[str, Any], collate: str|None) -> dict[str, list]:
+def postprocess(results: dict[str, list], conditions: dict[str, Any]) -> dict[str, list]:
 ```
 
 The `results` argument contains the results of a single simulation run. Since `variables: [null, vout]` is set in the datasheet, `results` contains a single key `vout` with a list of values (`results['vout'] = [..., ...]`). The `conditions` argument contains the conditions for this simulation run. For example, it contains a key `temperature` with the value for this simulation run, e.g. `27` (`conditions['temperature'] = 27`).
@@ -53,6 +53,12 @@ def postprocess(results: dict[str, list], conditions: dict[str, Any]) -> dict[st
     return {}
 ```
 
+To notify CACE about any issues, simply raise an exception in your script:
+
+```Python
+raise Exception('This is an exception')
+```
+
 For a real example, see the contents of `inl.py`:
 
 ```Python