def makeOne(populate=True, data=None):
mem_before = get_memory_usage()
gc.collect()
gc.collect()
objects_before = len(gc.get_objects())
client = LocalClient(options, 'pfx')
client.b_mem_before = mem_before
client.b_objects_before = objects_before
if populate:
client._bulk_update([
(t[0], (t[1][0], t[1][1], False, 1))
for t in data or _make_data(random_data, KEY_GROUP_SIZE)
])
return client
