W1A1E2 Wrong Values

I followed the instructions every step, but the values are incorrect. The hint says to use var_name for slicing 3D arrays, but the function is not recognized, in either np or tf.

“var_name” is a placeholder for the variable you want to slice.
You don’t use the exact text "var_name’.

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If “var_name” stands for the name of the arrays, then I’m pretty confident about my choices in each blank. Do you see a problem here?

I’ve sent you the code privately, in case it were useful.