Getting error TypeError: 'module' object is not callable while trying to use komm lib examples

Question

import komm as komm
import array
pam = komm.PAModulation(4, base_amplitude=2.0)
pam.constellation
array([-6., -2.,  2.,  6.])
pam.labeling
array([0, 1, 3, 2])
pam.modula