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Task: Fix NumPy 1D Array Concatenation TypeError

Task: Fix NumPy 1D Array Concatenation TypeError: a task in Terminal-Lego-15k (Harbor dataset). This occurs because np.concatenate expects its first argument to be a sequence (tuple or list) of arrays , not two separate array arguments.

The task

This occurs because `np.concatenate` expects its first argument to be a **sequence (tuple or list) of arrays**, not two separate array arguments.

Part of PrimeIntellect/Terminal-Lego-15k.