nq = 1
ntypes = 1
nions = [1]
el_names = ['V']
a_brav:
[[-1.4939  1.4939  1.4939]
 [ 1.4939 -1.4939  1.4939]
 [ 1.4939  1.4939 -1.4939]]
q_types:
[array([[ 0.,  0.,  0.]])]