is there a way to make a python class decorated with ` usabl

Question

is there a way to make a python class decorated with ` usable as dagster type` have `required resource keys`

prha · Answer

that s interesting is there a specific example of when you would need those resources to be initialized

dwall · Answer

yeah I could be making this more complicated than it needs to be so lmk what you think I m creating a `SnowflakeRelation` class that will house some useful properties methods for snowflake objects fully qualified object decomposition `exists ` and `size ` methods etc Ideally I d like to leverage the already existing `snowflake` resource to run the queries contained within the methods

prha · Answer

I think the default `required resource keys` on custom dagster types are resources that need to be initialized in the type check function

dwall · Answer

ideally I d be able to use `SnowflakeRelation` as a dagster type for solid I O

prha · Answer

but the `usable as dagster type` just uses the python `isinstance` call for type checking

prha · Answer

Separately the custom input hydration output materialization auto plugin functions that are used with custom types have their own `required resource keys` which I believe might be the hooks you want to use for solid I O

prha · Answer

here s an example in the `dagster pyspark` library <https github com dagster io dagster blob 8fd9edd70c753ecefcb586c25a8f326a02479752 python modules libraries dagster pyspark dagster pyspark init py L71>

prha · Answer

It s using `PythonObjectDagsterType` instead of the decorator but it s the same idea

prha · Answer

but let me know if I m missing the mark somewhere and there s a different use case you re trying to capture

dwall · Answer

awesome let me check this out and circle back Thanks < prha>