C5_W4: scaled_dot_product_attention implementation: How do I know what type of mask?

Course Q&A Deep Learning Specialization Sequence Models
1

In Excercise-3, Reminder : The boolean mask parameter can be passed in as none or as either padding or look-ahead.

How do I check the type of the boolean mask input parameter so as to create the right mask - either padding or look-ahead?

2

I realize this information is not needed to implement this function.

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