@Marvin how do I deregister a custom block?

To deregister or delete a custom block in Prefect, you can use the

.delete()

method on a block instance. Here's how you can do it: For Prefect 2.x: - You can delete a block with the following Python code:

python
  from prefect.blocks.core import Block

  Block.delete("json/life-the-universe-everything")

- Alternatively, you can use the CLI to delete a block:

prefect block delete json/life-the-universe-everything
  prefect block delete --id <my-id>

Source: Prefect 2.x Docs on Blocks For Prefect 3.x: - The documentation doesn't explicitly mention deletion in the sections available, but typically the method would be analogous. If the

.delete()

method exists for Prefect 3.x blocks, it would work similarly to Prefect 2.x. Using the CLI command to deregister specific blocks might still be applicable. If you try this and it doesn't work for 3.x, let me know, and I will search more precisely or run a test for you!

@Marvin never mind, it was

prefect block type delete blocktypetodelete

Ah, thank you for pointing that out! Indeed, using the CLI command

prefect block type delete <blocktypetodelete>

is another way to deregister a block type in Prefect. It's a handy command for removing block types at either Prefect 2.x or 3.x versions. If you have any more questions or need further assistance, feel free to ask. Happy coding!