address-store-0 AssetAddress + AssetStore
Summary:
- AssetStore: user-defined write/read
- AssetStoreHandle: a handle (it has info like asset_store_key and metadata) pointing to an asset_store threaded through step_context.resources
- ASSET_STORE_OPERATION event
Test Plan:
unit
ran the pickled_object.py three times:
Reviewers: sandyryza, cdecarolis, schrockn
Reviewed By: sandyryza, schrockn
Differential Revision: https://dagster.phacility.com/D4820