```with Flow STL Flow as f files = Parameter files f run fil

Question

```with Flow STL Flow as f files = Parameter files f run files= fname txt ```

Kyle Moon-Wright · Answer

Hey < Philip MacMenamin> Happy to help here Do you mind putting the error message in this thread below We want to provide visibility to other inquiries above

Philip MacMenamin · Answer

which thread

Kyle Moon-Wright · Answer

This thread I ll paste your traceback below to free up some space on the main page

Kyle Moon-Wright · Answer

```$ python3 m vtk flow flow home macmenaminpe local lib python3 8 site packages prefect core flow py 349 UserWarning Tasks were created but not added to the flow lt Parameter files gt This can occur when `Task` classes including `Parameters` are instantiated inside a `with flow ` block but not added to the flow either explicitly or as the input to another task For more information see <https docs prefect io core advanced tutorials task guide html adding tasks to flows> warnings warn Traceback most recent call last File usr lib python3 8 runpy py line 193 in run module as main return run code code main globals None File usr lib python3 8 runpy py line 86 in run code exec code run globals File home macmenaminpe code nih 3d resource workflows vtk flow flow py line 71 in lt module gt f run files= Cube 3d printing sample stl File home macmenaminpe local lib python3 8 site packages prefect core flow py line 1213 in run state = self run File home macmenaminpe local lib python3 8 site packages prefect core flow py line 1032 in run flow state = runner run TypeError run got an unexpected keyword argument files ```

Philip MacMenamin · Answer

ok sorry thought the snippet plus err was more helpful as a single message

Kyle Moon-Wright · Answer

Yeah np definitely helpful just don t want to lose other inquiries from today

Kyle Moon-Wright · Answer

Based on your snippet I think you re trying to accomplish something like this ```with Flow STL Flow as f files = Parameter name= files default= fname txt f run parameters= files some other file txt ```

Kyle Moon-Wright · Answer

This would set the default of your Parameter to a certain value which can be changed at runtime by setting the Parameter in `f run `

Philip MacMenamin · Answer

ok so I m using `prefect examples parameterized flow py` as a template

Philip MacMenamin · Answer

I ve seen this error before and it seemingly worked for me Then the above happens with the unexpected keyword and I don t understnad where that error comes from

Kyle Moon-Wright · Answer

Ah gotcha looks like the Parameter is not binding to the flow because it is not being used as input for another Task

Philip MacMenamin · Answer

Yes it s still giving this same error

Philip MacMenamin · Answer

I see ok

Kyle Moon-Wright · Answer

Yep so using the <https docs prefect io core examples parameterized flow html parameterized conditions|parameterized flow py example> the Parameter Task `value` is being taken in as an argument for `check if even` `print odd` and `print even` in the flow context as runtime values These parameter values can be changed in the `flow run ` arguments which is what I thought you were getting at with your initial snippet but still need to be passed to other tasks

Philip MacMenamin · Answer

Yes right I think I get the logic I just didn t understand that error message I thought I d put a typo in somewhere Thanks Kyle