HF RL Explorer

You are working on the Therapixel/pacsanini repository. The source code is checked out at /testbed at commit…

You are working on the Therapixel/pacsanini repository. The source code is checked out at /testbed at commit…: a task in SWE-Lego-RL-2699 (Harbor dataset). Describe the solution you'd like It would be good to have some notation where you could specify the index of the sequence element to search…

The task

**Describe the solution you'd like** It would be good to have some notation where you could specify the index of the sequence element to search. This could take the form of a bracket notation: `sequence_tag[idx]nested_tag`. In the example above, `DeidentificationMethodCodeSequence[1]CodeValue` should return `113106`.

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