Greetings. I'm encountering a configuration error when loading my definitions: I have a

job

that calls an

asset

that itself has two upstream assets. The

job

has a

config=

set for one of the

ops

(via

config={"ops":{"op1": ...}}

). When I attempt to load the repository, I get an error like so:

Missing required config entries "asset1" at the root. Sample config for missing entries: {'asset1': {'inputs': {'upstream_asset1': '...', 'upstream_asset2': '...'}}}

If I add the above scaffold to my `job`'s

config=

stanza, I get another error:

Error 1: Must specify a field at path root:asset1:inputs:upstream_asset1 if more than one field is defined. Defined fields: ['json', 'pickle', 'value']

I'm not sure why this configuration is needed (I did not define any

config_schema

for any of the assets), and I also wouldn't know what are the correct values to place in these config sections. I can't find anything in the documentation (or by reading the dagster source code, even) that helps me figure it out. Thanks for any help/pointers you can offer!