You are working on the alchemistry/alchemlyb repository. The source code is checked out at /testbed at…

You are working on the alchemistry/alchemlyb repository. The source code is checked out at /testbed at…: a task in SWE-Lego-RL-2699 (Harbor dataset). Code to reproduce the error. alchemlyb.concat( ) Traceback (most recent call last): File "~/GitHub/alchemlyb/src/alchemlyb/ init .py", line 51, in…

The task

Code to reproduce the error. ``` >>> alchemlyb.concat([]) Traceback (most recent call last): File "~/GitHub/alchemlyb/src/alchemlyb/__init__.py", line 51, in concat attrs = objs[0].attrs IndexError: list index out of range ```

Part of Lego-X/Lego-RL-2699.