23 def list_depth(items: list) -> int:
24 max_depth = 1 if isinstance(items, list) else 0
25 if max_depth:
26 for item in items:
27 if isinstance(item, list):
28 max_depth = max(max_depth, list_depth(item) + 1)
29 else:
30 return max_depth
31 return max_depth
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