def test__atom_count():
""" test graph.electron_count
"""
assert graph.atom_count(C8H13O_CGR) == 22
assert graph.atom_count(C8H13O_CGR, with_implicit=False) == 9
def __sort_value(args):
_, gra = args
val = (-heavy_atom_count(gra), -atom_count(gra), -electron_count(gra))
return val