Ah, I can now provide a clear answer about tags in Prefect 3.x! The syntax you showed:

python
@flow(tags=['test'])

is not correct for Prefect 3.x. In Prefect 3.x, tags are not specified directly in the flow decorator. Instead, you should use the tags context manager. Here's the correct way to add tags to a flow:

python
from prefect import flow
from prefect.context import tags

with tags("test"):
    @flow
    def my_flow():
        # your flow code here
        pass

Or if you need multiple tags:

python
with tags("test", "development"):
    @flow
    def my_flow():
        # your flow code here
        pass

The flow decorator itself has various other options you can use (as shown in the signature above), such as: - `name`: Custom name for the flow - `description`: Description of what the flow does - `version`: Version of the flow - `retries`: Number of times to retry the flow - And many others But for tags specifically, you need to use the context manager approach. This gives you more flexibility as you can apply tags dynamically at runtime. Would you like me to explain more about how to use tags effectively in Prefect 3.x or show you other flow decorator options that might be useful?