def _set_connection(self, start_node, end_node):
h.insert_multiple_values(self._connections, start_node, end_node)
h.insert_multiple_values(self._connections, end_node, start_node)
def test_insert_multiple_values_in_dictionary():
adict = {}
h.insert_multiple_values(adict, 'akey', 'avalue')
assert adict == {'akey': {'avalue'}}