[Python] How can I get the value stored in a 0-dimensional Numpy array?

I have a numpy array like this

a = np.array(1)


How can I get the 1 value back from this array?

a[0] does not work: it results in IndexError: 0-d arrays can't be indexed.

Similarly, a(0) gives an error that says TypeError: 'numpy.ndarray' object is not callable.

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