np.unique() function

data = data.valueslis = np.unique(data[:, 1span>])

I encountered the above code today, but I don't know the usage of the np.unique() function. After consulting the data, I found that the function np.unique(array) can remove the repeated numbers in the input array and sort them.
For example:

import numpy as nparray=[1,2,2,3,3,3]lis=np.unique(array)

The output is [1,2,3].