please tell me how to fix this error

[WWWWYYYYAAAA]

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NameError Traceback (most recent call last) ~\AppData\Local\Temp\ipykernel_13412\4144211082.py in 56 useCPU = False # @param {type:"boolean"} 57 ---> 58 if not is_colab: 59 # If running locally, there's a good chance your env will need this in order to not crash upon np.matmul() or similar operations. 60 os.environ['KMP_DUPLICATE_LIB_OK'] = 'TRUE'

NameError: name 'is_colab' is not defined

[lmagoncalo]

It looks like you forgot to run a previous cell, more specifically the cell 1.2 Prepare Folders