Google cloud bigtable HappyBase Table.cells不返回任何结果

下面是我的代码

# Create a Cloud Bigtable client.
client = bigtable.Client(project=config.GCP_PROJECT_ID)

# Connect to an existing Cloud Bigtable instance.
instance = client.instance(config.BIGTABLE_INSTANCE_ID)

# Open an existing table.
connection = Connection(instance=instance)
table = Table(name=config.BIGTABLE_TABLE_ID, connection=connection)

row_data = table.cells(row=row_key, column=column_family_id, include_timestamp=True)
print("test")

“测试”从未打印过。table.cells不返回任何结果。有人知道为什么吗？

通过HappyBase API提供了一个示例，这可能会有所帮助

我建议您检查是否有，以及是否能够成功获取实例和表