When accessing the latencies property on an AutoShardedClient when none of shards are ready, we get a ZeroDivisionError. An example of this can be seen here.
```py
class StatsBot(commands.AutoShardedBot):
def __init__(self):
super().__init__(command_prefix=None)
self._add_commands()
def _add_commands(self):
'''Adds commands automatically'''
for name, attr in inspect.getmembers(self):
if isinstance(attr, commands.Command):
self.add_command(attr)
```
When iterating through this custom client's it accesses the latencies property when no shards are ready, therefore it raises the error. A quick fix for this would be to return None if no shards are ready.
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